80824889 has 2 divisors, whose sum is σ = 80824890. Its totient is φ = 80824888.

The previous prime is 80824837. The next prime is 80824927. The reversal of 80824889 is 98842808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77088400 + 3736489 = 8780^2 + 1933^2 .

It is a cyclic number.

It is not a de Polignac number, because 80824889 - 2⁸ = 80824633 is a prime.

It is not a weakly prime, because it can be changed into another prime (80824589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40412444 + 40412445.

It is an arithmetic number, because the mean of its divisors is an integer number (40412445).

Almost surely, 2^80824889 is an apocalyptic number.

It is an amenable number.

80824889 is a deficient number, since it is larger than the sum of its proper divisors (1).

80824889 is an equidigital number, since it uses as much as digits as its factorization.

80824889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294912, while the sum is 47.

The square root of 80824889 is about 8990.2663475561. The cubic root of 80824889 is about 432.3628513650.

The spelling of 80824889 in words is "eighty million, eight hundred twenty-four thousand, eight hundred eighty-nine".