77984298 has 48 divisors (see below), whose sum is σ = 193714560. Its totient is φ = 22210848.

The previous prime is 77984281. The next prime is 77984311. The reversal of 77984298 is 89248977.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49243 + ... + 50801.

It is an arithmetic number, because the mean of its divisors is an integer number (4035720).

Almost surely, 2^77984298 is an apocalyptic number.

77984298 is an abundant number, since it is smaller than the sum of its proper divisors (115730262).

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

77984298 is a wasteful number, since it uses less digits than its factorization.

77984298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1968 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 77984298 is about 8830.8718708857. The cubic root of 77984298 is about 427.2371956104.

The spelling of 77984298 in words is "seventy-seven million, nine hundred eighty-four thousand, two hundred ninety-eight".