64256339 has 4 divisors (see below), whose sum is σ = 73435824. Its totient is φ = 55076856.

The previous prime is 64256327. The next prime is 64256351. The reversal of 64256339 is 93365246.

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

It is an interprime number because it is at equal distance from previous prime (64256327) and next prime (64256351).

It is a cyclic number.

It is not a de Polignac number, because 64256339 - 2⁴ = 64256323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64256239) 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, 4589732 + ... + 4589745.

It is an arithmetic number, because the mean of its divisors is an integer number (18358956).

Almost surely, 2^64256339 is an apocalyptic number.

64256339 is a deficient number, since it is larger than the sum of its proper divisors (9179485).

64256339 is an equidigital number, since it uses as much as digits as its factorization.

64256339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179484.

The product of its digits is 116640, while the sum is 38.

The square root of 64256339 is about 8016.0051771440. The cubic root of 64256339 is about 400.5333281700.

The spelling of 64256339 in words is "sixty-four million, two hundred fifty-six thousand, three hundred thirty-nine".