64828072 has 32 divisors (see below), whose sum is σ = 129470400. Its totient is φ = 30325504.

The previous prime is 64828069. The next prime is 64828073. The reversal of 64828072 is 27082846.

It is not an unprimeable number, because it can be changed into a prime (64828073) 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, 23013 + ... + 25675.

It is an arithmetic number, because the mean of its divisors is an integer number (4045950).

Almost surely, 2^64828072 is an apocalyptic number.

It is an amenable number.

64828072 is a deficient number, since it is larger than the sum of its proper divisors (64642328).

64828072 is a wasteful number, since it uses less digits than its factorization.

64828072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865 (or 2861 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 64828072 is about 8051.5881663185. The cubic root of 64828072 is about 401.7177626689.

The spelling of 64828072 in words is "sixty-four million, eight hundred twenty-eight thousand, seventy-two".