80892811 has 2 divisors, whose sum is σ = 80892812. Its totient is φ = 80892810.

The previous prime is 80892793. The next prime is 80892821. The reversal of 80892811 is 11829808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80892811 - 2⁷ = 80892683 is a prime.

It is not a weakly prime, because it can be changed into another prime (80892821) 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, 40446405 + 40446406.

It is an arithmetic number, because the mean of its divisors is an integer number (40446406).

Almost surely, 2^80892811 is an apocalyptic number.

80892811 is a deficient number, since it is larger than the sum of its proper divisors (1).

80892811 is an equidigital number, since it uses as much as digits as its factorization.

80892811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 80892811 is about 8994.0430841752. The cubic root of 80892811 is about 432.4839309298.

The spelling of 80892811 in words is "eighty million, eight hundred ninety-two thousand, eight hundred eleven".