64256723 has 8 divisors (see below), whose sum is σ = 66582000. Its totient is φ = 61972768.

The previous prime is 64256711. The next prime is 64256737. The reversal of 64256723 is 32765246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64256723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64256743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7148 + ... + 13401.

It is an arithmetic number, because the mean of its divisors is an integer number (8322750).

Almost surely, 2^64256723 is an apocalyptic number.

64256723 is a deficient number, since it is larger than the sum of its proper divisors (2325277).

64256723 is a wasteful number, since it uses less digits than its factorization.

64256723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20661.

The product of its digits is 60480, while the sum is 35.

The square root of 64256723 is about 8016.0291291886. The cubic root of 64256723 is about 400.5341260393.

The spelling of 64256723 in words is "sixty-four million, two hundred fifty-six thousand, seven hundred twenty-three".