72703264 has 12 divisors (see below), whose sum is σ = 143134614. Its totient is φ = 36351616.

The previous prime is 72703249. The next prime is 72703273. The reversal of 72703264 is 46230727.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63043600 + 9659664 = 7940^2 + 3108^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135957 + ... + 1136020.

Almost surely, 2^72703264 is an apocalyptic number.

It is an amenable number.

72703264 is a deficient number, since it is larger than the sum of its proper divisors (70431350).

72703264 is a wasteful number, since it uses less digits than its factorization.

72703264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271987 (or 2271979 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 72703264 is about 8526.6209016233. The cubic root of 72703264 is about 417.3668673243.

The spelling of 72703264 in words is "seventy-two million, seven hundred three thousand, two hundred sixty-four".