79908497 has 2 divisors, whose sum is σ = 79908498. Its totient is φ = 79908496.

The previous prime is 79908487. The next prime is 79908511. The reversal of 79908497 is 79480997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50140561 + 29767936 = 7081^2 + 5456^2 .

It is an emirp because it is prime and its reverse (79480997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79908497 - 2¹⁸ = 79646353 is a prime.

It is not a weakly prime, because it can be changed into another prime (79908487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39954248 + 39954249.

It is an arithmetic number, because the mean of its divisors is an integer number (39954249).

Almost surely, 2^79908497 is an apocalyptic number.

It is an amenable number.

79908497 is a deficient number, since it is larger than the sum of its proper divisors (1).

79908497 is an equidigital number, since it uses as much as digits as its factorization.

79908497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 79908497 is about 8939.1552732906. The cubic root of 79908497 is about 430.7225943011.

The spelling of 79908497 in words is "seventy-nine million, nine hundred eight thousand, four hundred ninety-seven".