79612399 has 2 divisors, whose sum is σ = 79612400. Its totient is φ = 79612398.

The previous prime is 79612373. The next prime is 79612409. The reversal of 79612399 is 99321697.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79612399 - 2⁵ = 79612367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79612319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39806199 + 39806200.

It is an arithmetic number, because the mean of its divisors is an integer number (39806200).

Almost surely, 2^79612399 is an apocalyptic number.

79612399 is a deficient number, since it is larger than the sum of its proper divisors (1).

79612399 is an equidigital number, since it uses as much as digits as its factorization.

79612399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 46.

The square root of 79612399 is about 8922.5780467307. The cubic root of 79612399 is about 430.1899269154.

The spelling of 79612399 in words is "seventy-nine million, six hundred twelve thousand, three hundred ninety-nine".