79290198 has 64 divisors (see below), whose sum is σ = 191116800. Its totient is φ = 24222240.

The previous prime is 79290163. The next prime is 79290217. The reversal of 79290198 is 89109297.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125343 + ... + 125973.

It is an arithmetic number, because the mean of its divisors is an integer number (2986200).

Almost surely, 2^79290198 is an apocalyptic number.

79290198 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 79290198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95558400).

79290198 is an abundant number, since it is smaller than the sum of its proper divisors (111826602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79290198 is a wasteful number, since it uses less digits than its factorization.

79290198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 79290198 is about 8904.5043657690. The cubic root of 79290198 is about 429.6087987025.

It can be divided in two parts, 7 and 9290198, that added together give a triangular number (9290205 = T₄₃₁₀).

The spelling of 79290198 in words is "seventy-nine million, two hundred ninety thousand, one hundred ninety-eight".