72351764 has 24 divisors (see below), whose sum is σ = 128701440. Its totient is φ = 35584064.

The previous prime is 72351733. The next prime is 72351787. The reversal of 72351764 is 46715327.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126872 + ... + 127440.

It is an arithmetic number, because the mean of its divisors is an integer number (5362560).

Almost surely, 2^72351764 is an apocalyptic number.

It is an amenable number.

72351764 is a deficient number, since it is larger than the sum of its proper divisors (56349676).

72351764 is a wasteful number, since it uses less digits than its factorization.

72351764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1037 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 72351764 is about 8505.9840112711. The cubic root of 72351764 is about 416.6931629728.

The spelling of 72351764 in words is "seventy-two million, three hundred fifty-one thousand, seven hundred sixty-four".