79488591 has 16 divisors (see below), whose sum is σ = 130443264. Its totient is φ = 41927904.

The previous prime is 79488581. The next prime is 79488593. The reversal of 79488591 is 19588497.

It is not a de Polignac number, because 79488591 - 2¹⁷ = 79357519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79488593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145311 + ... + 145856.

It is an arithmetic number, because the mean of its divisors is an integer number (8152704).

Almost surely, 2^79488591 is an apocalyptic number.

79488591 is a deficient number, since it is larger than the sum of its proper divisors (50954673).

79488591 is a wasteful number, since it uses less digits than its factorization.

79488591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291190.

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

The square root of 79488591 is about 8915.6374421575. The cubic root of 79488591 is about 429.9668101298.

The spelling of 79488591 in words is "seventy-nine million, four hundred eighty-eight thousand, five hundred ninety-one".