3298643257 has 32 divisors (see below), whose sum is σ = 4411473920. Its totient is φ = 2392752960.

The previous prime is 3298643209. The next prime is 3298643261. The reversal of 3298643257 is 7523468923.

3298643257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3298643257 - 2¹⁵ = 3298610489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3298643257.

It is not an unprimeable number, because it can be changed into a prime (3298643267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22828 + ... + 84370.

It is an arithmetic number, because the mean of its divisors is an integer number (137858560).

Almost surely, 2^3298643257 is an apocalyptic number.

It is an amenable number.

3298643257 is a deficient number, since it is larger than the sum of its proper divisors (1112830663).

3298643257 is a wasteful number, since it uses less digits than its factorization.

3298643257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61613.

The product of its digits is 2177280, while the sum is 49.

The square root of 3298643257 is about 57433.8163193079. The cubic root of 3298643257 is about 1488.6014920047.

The spelling of 3298643257 in words is "three billion, two hundred ninety-eight million, six hundred forty-three thousand, two hundred fifty-seven".