80900887 has 2 divisors, whose sum is σ = 80900888. Its totient is φ = 80900886.

The previous prime is 80900873. The next prime is 80900903. The reversal of 80900887 is 78800908.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80900887 is a prime.

It is a Chen prime.

It is equal to p_4718956 and since 80900887 and 4718956 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80900837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40450443 + 40450444.

It is an arithmetic number, because the mean of its divisors is an integer number (40450444).

Almost surely, 2^80900887 is an apocalyptic number.

80900887 is a deficient number, since it is larger than the sum of its proper divisors (1).

80900887 is an equidigital number, since it uses as much as digits as its factorization.

80900887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 80900887 is about 8994.4920367967. The cubic root of 80900887 is about 432.4983229133.

The spelling of 80900887 in words is "eighty million, nine hundred thousand, eight hundred eighty-seven".