80772111 has 24 divisors (see below), whose sum is σ = 134369664. Its totient is φ = 45798480.

The previous prime is 80772089. The next prime is 80772149. The reversal of 80772111 is 11127708.

It is not a de Polignac number, because 80772111 - 2⁵ = 80772079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80772011) 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 in 23 ways as a sum of consecutive naturals, for example, 3360 + ... + 13146.

It is an arithmetic number, because the mean of its divisors is an integer number (5598736).

Almost surely, 2^80772111 is an apocalyptic number.

80772111 is a deficient number, since it is larger than the sum of its proper divisors (53597553).

80772111 is a wasteful number, since it uses less digits than its factorization.

80772111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9931 (or 9928 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 80772111 is about 8987.3305825479. The cubic root of 80772111 is about 432.2687210561.

Adding to 80772111 its reverse (11127708), we get a palindrome (91899819).

The spelling of 80772111 in words is "eighty million, seven hundred seventy-two thousand, one hundred eleven".