722716 has 6 divisors (see below), whose sum is σ = 1264760. Its totient is φ = 361356.

The previous prime is 722713. The next prime is 722723. The reversal of 722716 is 617227.

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 (722713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90336 + ... + 90343.

2⁷²²⁷¹⁶ is an apocalyptic number.

It is an amenable number.

722716 is a deficient number, since it is larger than the sum of its proper divisors (542044).

722716 is a wasteful number, since it uses less digits than its factorization.

722716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180683 (or 180681 counting only the distinct ones).

The product of its digits is 1176, while the sum is 25.

The square root of 722716 is about 850.1270493285. The cubic root of 722716 is about 89.7406525493.

The spelling of 722716 in words is "seven hundred twenty-two thousand, seven hundred sixteen".