79586491 has 2 divisors, whose sum is σ = 79586492. Its totient is φ = 79586490.

The previous prime is 79586489. The next prime is 79586531. The reversal of 79586491 is 19468597.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79586491 - 2¹ = 79586489 is a prime.

Together with 79586489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79586461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39793245 + 39793246.

It is an arithmetic number, because the mean of its divisors is an integer number (39793246).

Almost surely, 2^79586491 is an apocalyptic number.

79586491 is a deficient number, since it is larger than the sum of its proper divisors (1).

79586491 is an equidigital number, since it uses as much as digits as its factorization.

79586491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 79586491 is about 8921.1261060474. The cubic root of 79586491 is about 430.1432567569.

The spelling of 79586491 in words is "seventy-nine million, five hundred eighty-six thousand, four hundred ninety-one".