8979993400 has 48 divisors (see below), whose sum is σ = 23861129040. Its totient is φ = 3078854400.

The previous prime is 8979993371. The next prime is 8979993401. The reversal of 8979993400 is 43999798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8979993401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3205741 + ... + 3208540.

It is an arithmetic number, because the mean of its divisors is an integer number (497106855).

Almost surely, 2^8979993400 is an apocalyptic number.

It is an amenable number.

8979993400 is an abundant number, since it is smaller than the sum of its proper divisors (14881135640).

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

8979993400 is a wasteful number, since it uses less digits than its factorization.

8979993400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414304 (or 6414295 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 58.

The square root of 8979993400 is about 94762.8271000818. The cubic root of 8979993400 is about 2078.5413682537.

The spelling of 8979993400 in words is "eight billion, nine hundred seventy-nine million, nine hundred ninety-three thousand, four hundred".