79888493 has 2 divisors, whose sum is σ = 79888494. Its totient is φ = 79888492.

The previous prime is 79888469. The next prime is 79888511. The reversal of 79888493 is 39488897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47375689 + 32512804 = 6883^2 + 5702^2 .

It is a cyclic number.

It is not a de Polignac number, because 79888493 - 2⁶ = 79888429 is a prime.

It is a super-2 number, since 2×79888493² = 12764342627622098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79888433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39944246 + 39944247.

It is an arithmetic number, because the mean of its divisors is an integer number (39944247).

Almost surely, 2^79888493 is an apocalyptic number.

It is an amenable number.

79888493 is a deficient number, since it is larger than the sum of its proper divisors (1).

79888493 is an equidigital number, since it uses as much as digits as its factorization.

79888493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 56.

The square root of 79888493 is about 8938.0363055875. The cubic root of 79888493 is about 430.6866494635.

The spelling of 79888493 in words is "seventy-nine million, eight hundred eighty-eight thousand, four hundred ninety-three".