79775493 has 48 divisors (see below), whose sum is σ = 129646080. Its totient is φ = 42720480.

The previous prime is 79775489. The next prime is 79775503. The reversal of 79775493 is 39457797.

It is not a de Polignac number, because 79775493 - 2² = 79775489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79775413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1190646 + ... + 1190712.

It is an arithmetic number, because the mean of its divisors is an integer number (2700960).

Almost surely, 2^79775493 is an apocalyptic number.

It is an amenable number.

79775493 is a deficient number, since it is larger than the sum of its proper divisors (49870587).

79775493 is a wasteful number, since it uses less digits than its factorization.

79775493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 167 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 51.

The square root of 79775493 is about 8931.7127696764. The cubic root of 79775493 is about 430.4834889752.

The spelling of 79775493 in words is "seventy-nine million, seven hundred seventy-five thousand, four hundred ninety-three".