64304457 has 8 divisors (see below), whose sum is σ = 97987776. Its totient is φ = 36745392.

The previous prime is 64304437. The next prime is 64304473. The reversal of 64304457 is 75440346.

It is a happy number.

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

It is not a de Polignac number, because 64304457 - 2⁷ = 64304329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64304437) 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, 1531038 + ... + 1531079.

It is an arithmetic number, because the mean of its divisors is an integer number (12248472).

Almost surely, 2^64304457 is an apocalyptic number.

It is an amenable number.

64304457 is a deficient number, since it is larger than the sum of its proper divisors (33683319).

64304457 is a wasteful number, since it uses less digits than its factorization.

64304457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062127.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 64304457 is about 8019.0059857815. The cubic root of 64304457 is about 400.6332822715.

The spelling of 64304457 in words is "sixty-four million, three hundred four thousand, four hundred fifty-seven".