79842091 has 8 divisors (see below), whose sum is σ = 92610560. Its totient is φ = 67414248.

The previous prime is 79842089. The next prime is 79842101. The reversal of 79842091 is 19024897.

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

It is a cyclic number.

It is not a de Polignac number, because 79842091 - 2¹ = 79842089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79842691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84651 + ... + 85588.

It is an arithmetic number, because the mean of its divisors is an integer number (11576320).

Almost surely, 2^79842091 is an apocalyptic number.

79842091 is a deficient number, since it is larger than the sum of its proper divisors (12768469).

79842091 is a wasteful number, since it uses less digits than its factorization.

79842091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170313.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 79842091 is about 8935.4401682290. The cubic root of 79842091 is about 430.6032474128.

The spelling of 79842091 in words is "seventy-nine million, eight hundred forty-two thousand, ninety-one".