79905898 has 8 divisors (see below), whose sum is σ = 120000960. Its totient is φ = 39905580.

The previous prime is 79905877. The next prime is 79905901. The reversal of 79905898 is 89850997.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21538 + ... + 24973.

It is an arithmetic number, because the mean of its divisors is an integer number (15000120).

Almost surely, 2^79905898 is an apocalyptic number.

79905898 is a deficient number, since it is larger than the sum of its proper divisors (40095062).

79905898 is a wasteful number, since it uses less digits than its factorization.

79905898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47372.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The square root of 79905898 is about 8939.0099004308. The cubic root of 79905898 is about 430.7179245426.

The spelling of 79905898 in words is "seventy-nine million, nine hundred five thousand, eight hundred ninety-eight".