80696872 has 8 divisors (see below), whose sum is σ = 151306650. Its totient is φ = 40348432.

The previous prime is 80696849. The next prime is 80696873. The reversal of 80696872 is 27869608.

It can be written as a sum of positive squares in only one way, i.e., 78605956 + 2090916 = 8866^2 + 1446^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (80696873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5043547 + ... + 5043562.

Almost surely, 2^80696872 is an apocalyptic number.

It is an amenable number.

80696872 is a deficient number, since it is larger than the sum of its proper divisors (70609778).

80696872 is a wasteful number, since it uses less digits than its factorization.

80696872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087115 (or 10087111 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 80696872 is about 8983.1437704180. The cubic root of 80696872 is about 432.1344603167.

It can be divided in two parts, 8069 and 6872, that added together give a palindrome (14941).

The spelling of 80696872 in words is "eighty million, six hundred ninety-six thousand, eight hundred seventy-two".