3337347661 has 4 divisors (see below), whose sum is σ = 3337859392. Its totient is φ = 3336835932.

The previous prime is 3337347641. The next prime is 3337347683. The reversal of 3337347661 is 1667437333.

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 3337347661 - 2²⁷ = 3203129933 is a prime.

It is a super-2 number, since 2×3337347661² = 22275778820764341842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3337347631) 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, 245955 + ... + 259168.

It is an arithmetic number, because the mean of its divisors is an integer number (834464848).

Almost surely, 2^3337347661 is an apocalyptic number.

It is an amenable number.

3337347661 is a deficient number, since it is larger than the sum of its proper divisors (511731).

3337347661 is an equidigital number, since it uses as much as digits as its factorization.

3337347661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511730.

The product of its digits is 571536, while the sum is 43.

The square root of 3337347661 is about 57769.7815557580. The cubic root of 3337347661 is about 1494.4010025251.

The spelling of 3337347661 in words is "three billion, three hundred thirty-seven million, three hundred forty-seven thousand, six hundred sixty-one".