722607 has 4 divisors (see below), whose sum is σ = 963480. Its totient is φ = 481736.

The previous prime is 722599. The next prime is 722611. The reversal of 722607 is 706227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 722607 - 2³ = 722599 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722607.

It is not an unprimeable number, because it can be changed into a prime (722807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120432 + ... + 120437.

It is an arithmetic number, because the mean of its divisors is an integer number (240870).

2⁷²²⁶⁰⁷ is an apocalyptic number.

722607 is a deficient number, since it is larger than the sum of its proper divisors (240873).

722607 is a wasteful number, since it uses less digits than its factorization.

722607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240872.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 722607 is about 850.0629388463. The cubic root of 722607 is about 89.7361407618.

The spelling of 722607 in words is "seven hundred twenty-two thousand, six hundred seven".