79420459 has 8 divisors (see below), whose sum is σ = 82091520. Its totient is φ = 76790376.

The previous prime is 79420457. The next prime is 79420469. The reversal of 79420459 is 95402497.

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 79420459 - 2¹ = 79420457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79420457) 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, 6279 + ... + 14080.

It is an arithmetic number, because the mean of its divisors is an integer number (10261440).

Almost surely, 2^79420459 is an apocalyptic number.

79420459 is a deficient number, since it is larger than the sum of its proper divisors (2671061).

79420459 is a wasteful number, since it uses less digits than its factorization.

79420459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20489.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 79420459 is about 8911.8156960296. The cubic root of 79420459 is about 429.8439292985.

The spelling of 79420459 in words is "seventy-nine million, four hundred twenty thousand, four hundred fifty-nine".