8724394392 has 64 divisors (see below), whose sum is σ = 24934990080. Its totient is φ = 2491869312.

The previous prime is 8724394381. The next prime is 8724394421. The reversal of 8724394392 is 2934934278.

It is a super-2 number, since 2×8724394392² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 666018 + ... + 678990.

It is an arithmetic number, because the mean of its divisors is an integer number (389609220).

Almost surely, 2^8724394392 is an apocalyptic number.

It is an amenable number.

8724394392 is an abundant number, since it is smaller than the sum of its proper divisors (16210595688).

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

8724394392 is a wasteful number, since it uses less digits than its factorization.

8724394392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16992 (or 16988 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 51.

The square root of 8724394392 is about 93404.4666597910. The cubic root of 8724394392 is about 2058.6306285518.

The spelling of 8724394392 in words is "eight billion, seven hundred twenty-four million, three hundred ninety-four thousand, three hundred ninety-two".