72576845 has 16 divisors (see below), whose sum is σ = 99142272. Its totient is φ = 50487360.

The previous prime is 72576811. The next prime is 72576851. The reversal of 72576845 is 54867527.

It is not a de Polignac number, because 72576845 - 2¹² = 72572749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72576796 and 72576805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27422 + ... + 29951.

It is an arithmetic number, because the mean of its divisors is an integer number (6196392).

Almost surely, 2^72576845 is an apocalyptic number.

It is an amenable number.

72576845 is a deficient number, since it is larger than the sum of its proper divisors (26565427).

72576845 is a wasteful number, since it uses less digits than its factorization.

72576845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57412.

The product of its digits is 470400, while the sum is 44.

The square root of 72576845 is about 8519.2044816403. The cubic root of 72576845 is about 417.1248162307.

The spelling of 72576845 in words is "seventy-two million, five hundred seventy-six thousand, eight hundred forty-five".