79405491 has 8 divisors (see below), whose sum is σ = 115498944. Its totient is φ = 48124520.

The previous prime is 79405489. The next prime is 79405511. The reversal of 79405491 is 19450497.

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 79405491 - 2¹ = 79405489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79405421) 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, 1203081 + ... + 1203146.

It is an arithmetic number, because the mean of its divisors is an integer number (14437368).

Almost surely, 2^79405491 is an apocalyptic number.

79405491 is a deficient number, since it is larger than the sum of its proper divisors (36093453).

79405491 is a wasteful number, since it uses less digits than its factorization.

79405491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406241.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 79405491 is about 8910.9758724844. The cubic root of 79405491 is about 429.8169240481.

It can be divided in two parts, 7940 and 5491, that added together give a palindrome (13431).

The spelling of 79405491 in words is "seventy-nine million, four hundred five thousand, four hundred ninety-one".