72851841 has 12 divisors (see below), whose sum is σ = 105605968. Its totient is φ = 48394584.

The previous prime is 72851837. The next prime is 72851861. The reversal of 72851841 is 14815827.

It is not a de Polignac number, because 72851841 - 2² = 72851837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72851796 and 72851805.

It is not an unprimeable number, because it can be changed into a prime (72851861) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11755 + ... + 16848.

Almost surely, 2^72851841 is an apocalyptic number.

It is an amenable number.

72851841 is a deficient number, since it is larger than the sum of its proper divisors (32754127).

72851841 is a wasteful number, since it uses less digits than its factorization.

72851841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28892 (or 28889 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 72851841 is about 8535.3289919018. The cubic root of 72851841 is about 417.6509853469.

The spelling of 72851841 in words is "seventy-two million, eight hundred fifty-one thousand, eight hundred forty-one".