3381855437 has 4 divisors (see below), whose sum is σ = 3453809856. Its totient is φ = 3309901020.

The previous prime is 3381855427. The next prime is 3381855469. The reversal of 3381855437 is 7345581833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3381855437 - 2²⁰ = 3380806861 is a prime.

It is a super-3 number, since 3×3381855437³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 71954371 = 3381855437 / (3 + 3 + 8 + 1 + 8 + 5 + 5 + 4 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3381855391 and 3381855400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3381855427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35977139 + ... + 35977232.

It is an arithmetic number, because the mean of its divisors is an integer number (863452464).

Almost surely, 2^3381855437 is an apocalyptic number.

It is an amenable number.

3381855437 is a deficient number, since it is larger than the sum of its proper divisors (71954419).

3381855437 is an equidigital number, since it uses as much as digits as its factorization.

3381855437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71954418.

The product of its digits is 1209600, while the sum is 47.

The square root of 3381855437 is about 58153.7224689873. The cubic root of 3381855437 is about 1501.0149334149.

The spelling of 3381855437 in words is "three billion, three hundred eighty-one million, eight hundred fifty-five thousand, four hundred thirty-seven".