80992611 has 48 divisors (see below), whose sum is σ = 142871040. Its totient is φ = 43182720.

The previous prime is 80992603. The next prime is 80992631. The reversal of 80992611 is 11629908.

It is not a de Polignac number, because 80992611 - 2³ = 80992603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80992601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84511 + ... + 85463.

It is an arithmetic number, because the mean of its divisors is an integer number (2976480).

Almost surely, 2^80992611 is an apocalyptic number.

80992611 is a deficient number, since it is larger than the sum of its proper divisors (61878429).

80992611 is a wasteful number, since it uses less digits than its factorization.

80992611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 80992611 is about 8999.5894906379. The cubic root of 80992611 is about 432.6617141711.

The spelling of 80992611 in words is "eighty million, nine hundred ninety-two thousand, six hundred eleven".