722925 has 72 divisors (see below), whose sum is σ = 1624896. Its totient is φ = 311040.

The previous prime is 722921. The next prime is 722933. The reversal of 722925 is 529227.

It is a happy number.

It is not a de Polignac number, because 722925 - 2² = 722921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

722925 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722921) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42517 + ... + 42533.

It is an arithmetic number, because the mean of its divisors is an integer number (22568).

2⁷²²⁹²⁵ is an apocalyptic number.

722925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

722925 is an abundant number, since it is smaller than the sum of its proper divisors (901971).

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

722925 is a wasteful number, since it uses less digits than its factorization.

722925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49 (or 32 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 722925 is about 850.2499632461. The cubic root of 722925 is about 89.7493023226.

The spelling of 722925 in words is "seven hundred twenty-two thousand, nine hundred twenty-five".