79452997 has 4 divisors (see below), whose sum is σ = 85564780. Its totient is φ = 73341216.

The previous prime is 79452979. The next prime is 79453007. The reversal of 79452997 is 79925497.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79925497 = 659 ⋅121283.

It can be written as a sum of positive squares in 2 ways, for example, as 14182756 + 65270241 = 3766^2 + 8079^2 .

It is not a de Polignac number, because 79452997 - 2⁷ = 79452869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79452697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055872 + ... + 3055897.

It is an arithmetic number, because the mean of its divisors is an integer number (21391195).

Almost surely, 2^79452997 is an apocalyptic number.

It is an amenable number.

79452997 is a deficient number, since it is larger than the sum of its proper divisors (6111783).

79452997 is a wasteful number, since it uses less digits than its factorization.

79452997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111782.

The product of its digits is 1428840, while the sum is 52.

The square root of 79452997 is about 8913.6410630000. The cubic root of 79452997 is about 429.9026226225.

The spelling of 79452997 in words is "seventy-nine million, four hundred fifty-two thousand, nine hundred ninety-seven".