3378821217 has 4 divisors (see below), whose sum is σ = 4505094960. Its totient is φ = 2252547476.

The previous prime is 3378821207. The next prime is 3378821219. The reversal of 3378821217 is 7121288733.

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 3378821217 - 2²³ = 3370432609 is a prime.

It is a super-2 number, since 2×3378821217² = 22832865632898722178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3378821219) 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, 563136867 + ... + 563136872.

It is an arithmetic number, because the mean of its divisors is an integer number (1126273740).

Almost surely, 2^3378821217 is an apocalyptic number.

It is an amenable number.

3378821217 is a deficient number, since it is larger than the sum of its proper divisors (1126273743).

3378821217 is a wasteful number, since it uses less digits than its factorization.

3378821217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126273742.

The product of its digits is 112896, while the sum is 42.

The square root of 3378821217 is about 58127.6286889462. The cubic root of 3378821217 is about 1500.5658927057.

The spelling of 3378821217 in words is "three billion, three hundred seventy-eight million, eight hundred twenty-one thousand, two hundred seventeen".