64728294 has 16 divisors (see below), whose sum is σ = 130792368. Its totient is φ = 21353472.

The previous prime is 64728283. The next prime is 64728311. The reversal of 64728294 is 49282746.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55027 + ... + 56190.

It is an arithmetic number, because the mean of its divisors is an integer number (8174523).

Almost surely, 2^64728294 is an apocalyptic number.

64728294 is an abundant number, since it is smaller than the sum of its proper divisors (66064074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64728294 is a wasteful number, since it uses less digits than its factorization.

64728294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111319.

The product of its digits is 193536, while the sum is 42.

The square root of 64728294 is about 8045.3896114483. The cubic root of 64728294 is about 401.5115599380.

The spelling of 64728294 in words is "sixty-four million, seven hundred twenty-eight thousand, two hundred ninety-four".