80973899 has 2 divisors, whose sum is σ = 80973900. Its totient is φ = 80973898.

The previous prime is 80973883. The next prime is 80973911. The reversal of 80973899 is 99837908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80973899 - 2⁴ = 80973883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80973899.

It is not a weakly prime, because it can be changed into another prime (80973799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40486949 + 40486950.

It is an arithmetic number, because the mean of its divisors is an integer number (40486950).

Almost surely, 2^80973899 is an apocalyptic number.

80973899 is a deficient number, since it is larger than the sum of its proper divisors (1).

80973899 is an equidigital number, since it uses as much as digits as its factorization.

80973899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 80973899 is about 8998.5498276111. The cubic root of 80973899 is about 432.6283918327.

The spelling of 80973899 in words is "eighty million, nine hundred seventy-three thousand, eight hundred ninety-nine".