79858491 has 8 divisors (see below), whose sum is σ = 106553664. Its totient is φ = 53201160.

The previous prime is 79858453. The next prime is 79858561. The reversal of 79858491 is 19485897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79858491 - 2¹³ = 79850299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79858421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4101 + ... + 13286.

It is an arithmetic number, because the mean of its divisors is an integer number (13319208).

Almost surely, 2^79858491 is an apocalyptic number.

79858491 is a deficient number, since it is larger than the sum of its proper divisors (26695173).

79858491 is a wasteful number, since it uses less digits than its factorization.

79858491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18921.

The product of its digits is 725760, while the sum is 51.

The square root of 79858491 is about 8936.3578151280. The cubic root of 79858491 is about 430.6327281445.

The spelling of 79858491 in words is "seventy-nine million, eight hundred fifty-eight thousand, four hundred ninety-one".