64290784 has 24 divisors (see below), whose sum is σ = 128359728. Its totient is φ = 31691520.

The previous prime is 64290781. The next prime is 64290799. The reversal of 64290784 is 48709246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64290781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11877 + ... + 16420.

It is an arithmetic number, because the mean of its divisors is an integer number (5348322).

Almost surely, 2^64290784 is an apocalyptic number.

It is an amenable number.

64290784 is a deficient number, since it is larger than the sum of its proper divisors (64068944).

64290784 is a wasteful number, since it uses less digits than its factorization.

64290784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28378 (or 28370 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 64290784 is about 8018.1534033716. The cubic root of 64290784 is about 400.6048848248.

The spelling of 64290784 in words is "sixty-four million, two hundred ninety thousand, seven hundred eighty-four".