72863764 has 24 divisors (see below), whose sum is σ = 134120448. Its totient is φ = 34588320.

The previous prime is 72863741. The next prime is 72863779. The reversal of 72863764 is 46736827.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72863764.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 1029 + ... + 12115.

It is an arithmetic number, because the mean of its divisors is an integer number (5588352).

Almost surely, 2^72863764 is an apocalyptic number.

It is an amenable number.

72863764 is a deficient number, since it is larger than the sum of its proper divisors (61256684).

72863764 is a wasteful number, since it uses less digits than its factorization.

72863764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11175 (or 11173 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 72863764 is about 8536.0274132643. The cubic root of 72863764 is about 417.6737684868.

The spelling of 72863764 in words is "seventy-two million, eight hundred sixty-three thousand, seven hundred sixty-four".