80008813 has 2 divisors, whose sum is σ = 80008814. Its totient is φ = 80008812.

The previous prime is 80008777. The next prime is 80008847. The reversal of 80008813 is 31880008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53978409 + 26030404 = 7347^2 + 5102^2 .

It is a cyclic number.

It is not a de Polignac number, because 80008813 - 2⁹ = 80008301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80008213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40004406 + 40004407.

It is an arithmetic number, because the mean of its divisors is an integer number (40004407).

Almost surely, 2^80008813 is an apocalyptic number.

It is an amenable number.

80008813 is a deficient number, since it is larger than the sum of its proper divisors (1).

80008813 is an equidigital number, since it uses as much as digits as its factorization.

80008813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 80008813 is about 8944.7645581088. The cubic root of 80008813 is about 430.9027599528.

The spelling of 80008813 in words is "eighty million, eight thousand, eight hundred thirteen".