4721398 has 16 divisors (see below), whose sum is σ = 7761744. Its totient is φ = 2136160.

The previous prime is 4721383. The next prime is 4721407. The reversal of 4721398 is 8931274.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6636 + ... + 7312.

It is an arithmetic number, because the mean of its divisors is an integer number (485109).

Almost surely, 2^4721398 is an apocalyptic number.

4721398 is a deficient number, since it is larger than the sum of its proper divisors (3040346).

4721398 is a wasteful number, since it uses less digits than its factorization.

4721398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its digits is 12096, while the sum is 34.

The square root of 4721398 is about 2172.8778152487. The cubic root of 4721398 is about 167.7606900747.

The spelling of 4721398 in words is "four million, seven hundred twenty-one thousand, three hundred ninety-eight".