80215937 has 2 divisors, whose sum is σ = 80215938. Its totient is φ = 80215936.

The previous prime is 80215901. The next prime is 80215969. The reversal of 80215937 is 73951208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75759616 + 4456321 = 8704^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 80215937 - 2⁶ = 80215873 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 80215897 and 80215906.

It is not a weakly prime, because it can be changed into another prime (80215637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40107968 + 40107969.

It is an arithmetic number, because the mean of its divisors is an integer number (40107969).

Almost surely, 2^80215937 is an apocalyptic number.

It is an amenable number.

80215937 is a deficient number, since it is larger than the sum of its proper divisors (1).

80215937 is an equidigital number, since it uses as much as digits as its factorization.

80215937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 80215937 is about 8956.3350205316. The cubic root of 80215937 is about 431.2742748500.

The spelling of 80215937 in words is "eighty million, two hundred fifteen thousand, nine hundred thirty-seven".