80872936 has 16 divisors (see below), whose sum is σ = 151763040. Its totient is φ = 40402800.

The previous prime is 80872931. The next prime is 80872943. The reversal of 80872936 is 63927808.

It is a junction number, because it is equal to n+sod(n) for n = 80872892 and 80872901.

It is not an unprimeable number, because it can be changed into a prime (80872931) 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 3 ways as a sum of consecutive naturals, for example, 8125 + ... + 15091.

It is an arithmetic number, because the mean of its divisors is an integer number (9485190).

Almost surely, 2^80872936 is an apocalyptic number.

It is an amenable number.

80872936 is a deficient number, since it is larger than the sum of its proper divisors (70890104).

80872936 is a wasteful number, since it uses less digits than its factorization.

80872936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8424 (or 8420 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 80872936 is about 8992.9381183237. The cubic root of 80872936 is about 432.4485082427.

The spelling of 80872936 in words is "eighty million, eight hundred seventy-two thousand, nine hundred thirty-six".