722764625 has 32 divisors (see below), whose sum is σ = 986798592. Its totient is φ = 524160000.

The previous prime is 722764621. The next prime is 722764633. The reversal of 722764625 is 526467227.

It is not a de Polignac number, because 722764625 - 2² = 722764621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722764621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792920 + ... + 793830.

It is an arithmetic number, because the mean of its divisors is an integer number (30837456).

Almost surely, 2^722764625 is an apocalyptic number.

It is an amenable number.

722764625 is a deficient number, since it is larger than the sum of its proper divisors (264033967).

722764625 is a wasteful number, since it uses less digits than its factorization.

722764625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1504 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 722764625 is about 26884.2821179960. The cubic root of 722764625 is about 897.4266511545.

The spelling of 722764625 in words is "seven hundred twenty-two million, seven hundred sixty-four thousand, six hundred twenty-five".