4721392 has 20 divisors (see below), whose sum is σ = 9851800. Its totient is φ = 2179008.

The previous prime is 4721383. The next prime is 4721407. The reversal of 4721392 is 2931274.

It is a self number, because there is not a number n which added to its sum of digits gives 4721392.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11142 + ... + 11557.

It is an arithmetic number, because the mean of its divisors is an integer number (492590).

Almost surely, 2^4721392 is an apocalyptic number.

It is an amenable number.

4721392 is an abundant number, since it is smaller than the sum of its proper divisors (5130408).

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

4721392 is a wasteful number, since it uses less digits than its factorization.

4721392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22720 (or 22714 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 4721392 is about 2172.8764345908. The cubic root of 4721392 is about 167.7606190107.

The spelling of 4721392 in words is "four million, seven hundred twenty-one thousand, three hundred ninety-two".