3256913 has 4 divisors (see below), whose sum is σ = 3553008. Its totient is φ = 2960820.

The previous prime is 3256889. The next prime is 3256927. The reversal of 3256913 is 3196523.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3196523 = 11 ⋅290593.

It is a cyclic number.

It is not a de Polignac number, because 3256913 - 2¹⁴ = 3240529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3256943) 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, 148031 + ... + 148052.

It is an arithmetic number, because the mean of its divisors is an integer number (888252).

Almost surely, 2^3256913 is an apocalyptic number.

It is an amenable number.

3256913 is a deficient number, since it is larger than the sum of its proper divisors (296095).

3256913 is a wasteful number, since it uses less digits than its factorization.

3256913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296094.

The product of its digits is 4860, while the sum is 29.

The square root of 3256913 is about 1804.6919404707. The cubic root of 3256913 is about 148.2297533270.

The spelling of 3256913 in words is "three million, two hundred fifty-six thousand, nine hundred thirteen".