64984972 has 24 divisors (see below), whose sum is σ = 122774400. Its totient is φ = 29918976.

The previous prime is 64984967. The next prime is 64984993. The reversal of 64984972 is 27948946.

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, 23604 + ... + 26212.

It is an arithmetic number, because the mean of its divisors is an integer number (5115600).

Almost surely, 2^64984972 is an apocalyptic number.

It is an amenable number.

64984972 is a deficient number, since it is larger than the sum of its proper divisors (57789428).

64984972 is a wasteful number, since it uses less digits than its factorization.

64984972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105 (or 3103 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The square root of 64984972 is about 8061.3256974272. The cubic root of 64984972 is about 402.0415870774.

It can be divided in two parts, 64984 and 972, that added together give a palindrome (65956).

The spelling of 64984972 in words is "sixty-four million, nine hundred eighty-four thousand, nine hundred seventy-two".