79452397 has 4 divisors (see below), whose sum is σ = 80540860. Its totient is φ = 78363936.

The previous prime is 79452391. The next prime is 79452403. The reversal of 79452397 is 79325497.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (79452391) and next prime (79452403).

It can be written as a sum of positive squares in 2 ways, for example, as 38862756 + 40589641 = 6234^2 + 6371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79452397 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 (79452391) 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, 544122 + ... + 544267.

It is an arithmetic number, because the mean of its divisors is an integer number (20135215).

Almost surely, 2^79452397 is an apocalyptic number.

It is an amenable number.

79452397 is a deficient number, since it is larger than the sum of its proper divisors (1088463).

79452397 is a wasteful number, since it uses less digits than its factorization.

79452397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088462.

The product of its digits is 476280, while the sum is 46.

The square root of 79452397 is about 8913.6074066564. The cubic root of 79452397 is about 429.9015404639.

The spelling of 79452397 in words is "seventy-nine million, four hundred fifty-two thousand, three hundred ninety-seven".