3256428607 has 4 divisors (see below), whose sum is σ = 3257260936. Its totient is φ = 3255596280.

The previous prime is 3256428559. The next prime is 3256428661. The reversal of 3256428607 is 7068246523.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3256428607 - 2⁷ = 3256428479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256428407) 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, 410268 + ... + 418129.

It is an arithmetic number, because the mean of its divisors is an integer number (814315234).

Almost surely, 2^3256428607 is an apocalyptic number.

3256428607 is a deficient number, since it is larger than the sum of its proper divisors (832329).

3256428607 is an equidigital number, since it uses as much as digits as its factorization.

3256428607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832328.

The product of its (nonzero) digits is 483840, while the sum is 43.

The square root of 3256428607 is about 57065.1260140552. The cubic root of 3256428607 is about 1482.2240434198.

The spelling of 3256428607 in words is "three billion, two hundred fifty-six million, four hundred twenty-eight thousand, six hundred seven".