722721125 has 32 divisors (see below), whose sum is σ = 1034691840. Its totient is φ = 493713600.

The previous prime is 722721071. The next prime is 722721137. The reversal of 722721125 is 521127227.

It is not a de Polignac number, because 722721125 - 2⁶ = 722721061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254966 + ... + 257784.

It is an arithmetic number, because the mean of its divisors is an integer number (32334120).

Almost surely, 2^722721125 is an apocalyptic number.

It is an amenable number.

722721125 is a deficient number, since it is larger than the sum of its proper divisors (311970715).

722721125 is a wasteful number, since it uses less digits than its factorization.

722721125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134 (or 3124 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 722721125 is about 26883.4730829184. The cubic root of 722721125 is about 897.4086467489.

The spelling of 722721125 in words is "seven hundred twenty-two million, seven hundred twenty-one thousand, one hundred twenty-five".