78992898 has 16 divisors (see below), whose sum is σ = 163082496. Its totient is φ = 25481520.

The previous prime is 78992887. The next prime is 78992909. The reversal of 78992898 is 89829987.

It is an interprime number because it is at equal distance from previous prime (78992887) and next prime (78992909).

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 7 ways as a sum of consecutive naturals, for example, 212161 + ... + 212532.

It is an arithmetic number, because the mean of its divisors is an integer number (10192656).

Almost surely, 2^78992898 is an apocalyptic number.

78992898 is an abundant number, since it is smaller than the sum of its proper divisors (84089598).

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

78992898 is a wasteful number, since it uses less digits than its factorization.

78992898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424729.

The product of its digits is 5225472, while the sum is 60.

The square root of 78992898 is about 8887.7948896225. The cubic root of 78992898 is about 429.0711842799.

The spelling of 78992898 in words is "seventy-eight million, nine hundred ninety-two thousand, eight hundred ninety-eight".