72851736 has 32 divisors (see below), whose sum is σ = 188006400. Its totient is φ = 23500320.

The previous prime is 72851717. The next prime is 72851743. The reversal of 72851736 is 63715827.

It is a junction number, because it is equal to n+sod(n) for n = 72851694 and 72851703.

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, 48216 + ... + 49703.

It is an arithmetic number, because the mean of its divisors is an integer number (5875200).

Almost surely, 2^72851736 is an apocalyptic number.

It is an amenable number.

72851736 is an abundant number, since it is smaller than the sum of its proper divisors (115154664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72851736 is a wasteful number, since it uses less digits than its factorization.

72851736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97959 (or 97955 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 72851736 is about 8535.3228409944. The cubic root of 72851736 is about 417.6507846959.

The spelling of 72851736 in words is "seventy-two million, eight hundred fifty-one thousand, seven hundred thirty-six".