64837072 has 20 divisors (see below), whose sum is σ = 128687076. Its totient is φ = 31627520.

The previous prime is 64837049. The next prime is 64837079. The reversal of 64837072 is 27073846.

It can be written as a sum of positive squares in 2 ways, for example, as 30074256 + 34762816 = 5484^2 + 5896^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64837079) 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, 48763 + ... + 50074.

Almost surely, 2^64837072 is an apocalyptic number.

It is an amenable number.

64837072 is a deficient number, since it is larger than the sum of its proper divisors (63850004).

64837072 is a wasteful number, since it uses less digits than its factorization.

64837072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98886 (or 98880 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 64837072 is about 8052.1470428700. The cubic root of 64837072 is about 401.7363517999.

The spelling of 64837072 in words is "sixty-four million, eight hundred thirty-seven thousand, seventy-two".