64753972 has 12 divisors (see below), whose sum is σ = 114323076. Its totient is φ = 32090240.

The previous prime is 64753963. The next prime is 64753979. The reversal of 64753972 is 27935746.

It can be written as a sum of positive squares in 2 ways, for example, as 6170256 + 58583716 = 2484^2 + 7654^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64753979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71179 + ... + 72082.

It is an arithmetic number, because the mean of its divisors is an integer number (9526923).

Almost surely, 2^64753972 is an apocalyptic number.

It is an amenable number.

64753972 is a deficient number, since it is larger than the sum of its proper divisors (49569104).

64753972 is a wasteful number, since it uses less digits than its factorization.

64753972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143378 (or 143376 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 64753972 is about 8046.9852740017. The cubic root of 64753972 is about 401.5646467215.

The spelling of 64753972 in words is "sixty-four million, seven hundred fifty-three thousand, nine hundred seventy-two".