80808929 has 2 divisors, whose sum is σ = 80808930. Its totient is φ = 80808928.

The previous prime is 80808887. The next prime is 80808961. The reversal of 80808929 is 92980808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63361600 + 17447329 = 7960^2 + 4177^2 .

It is a cyclic number.

It is not a de Polignac number, because 80808929 - 2¹⁶ = 80743393 is a prime.

It is a super-2 number, since 2×80808929² = 13060166012254082, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80808929.

It is not a weakly prime, because it can be changed into another prime (80808029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40404464 + 40404465.

It is an arithmetic number, because the mean of its divisors is an integer number (40404465).

Almost surely, 2^80808929 is an apocalyptic number.

It is an amenable number.

80808929 is a deficient number, since it is larger than the sum of its proper divisors (1).

80808929 is an equidigital number, since it uses as much as digits as its factorization.

80808929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 80808929 is about 8989.3786770833. The cubic root of 80808929 is about 432.3343908027.

The spelling of 80808929 in words is "eighty million, eight hundred eight thousand, nine hundred twenty-nine".