64736372 has 12 divisors (see below), whose sum is σ = 115146276. Its totient is φ = 31837440.

The previous prime is 64736341. The next prime is 64736387. The reversal of 64736372 is 27363746.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8726116 + 56010256 = 2954^2 + 7484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132413 + ... + 132900.

It is an arithmetic number, because the mean of its divisors is an integer number (9595523).

Almost surely, 2^64736372 is an apocalyptic number.

It is an amenable number.

64736372 is a deficient number, since it is larger than the sum of its proper divisors (50409904).

64736372 is a wasteful number, since it uses less digits than its factorization.

64736372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265378 (or 265376 counting only the distinct ones).

The product of its digits is 127008, while the sum is 38.

The square root of 64736372 is about 8045.8916224369. The cubic root of 64736372 is about 401.5282619358.

The spelling of 64736372 in words is "sixty-four million, seven hundred thirty-six thousand, three hundred seventy-two".