79423797 has 4 divisors (see below), whose sum is σ = 105898400. Its totient is φ = 52949196.

The previous prime is 79423787. The next prime is 79423871. The reversal of 79423797 is 79732497.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 79423797 - 2¹⁰ = 79422773 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 (79423717) 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, 13237297 + ... + 13237302.

It is an arithmetic number, because the mean of its divisors is an integer number (26474600).

Almost surely, 2^79423797 is an apocalyptic number.

It is an amenable number.

79423797 is a deficient number, since it is larger than the sum of its proper divisors (26474603).

79423797 is a wasteful number, since it uses less digits than its factorization.

79423797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26474602.

The product of its digits is 666792, while the sum is 48.

The square root of 79423797 is about 8912.0029735184. The cubic root of 79423797 is about 429.8499512520.

The spelling of 79423797 in words is "seventy-nine million, four hundred twenty-three thousand, seven hundred ninety-seven".