72751856 has 10 divisors (see below), whose sum is σ = 140956752. Its totient is φ = 36375920.

The previous prime is 72751841. The next prime is 72751859. The reversal of 72751856 is 65815727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72751859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2273480 + ... + 2273511.

Almost surely, 2^72751856 is an apocalyptic number.

It is an amenable number.

72751856 is a deficient number, since it is larger than the sum of its proper divisors (68204896).

72751856 is a wasteful number, since it uses less digits than its factorization.

72751856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546999 (or 4546993 counting only the distinct ones).

The product of its digits is 117600, while the sum is 41.

The square root of 72751856 is about 8529.4698545689. The cubic root of 72751856 is about 417.4598304785.

The spelling of 72751856 in words is "seventy-two million, seven hundred fifty-one thousand, eight hundred fifty-six".