722697 has 4 divisors (see below), whose sum is σ = 963600. Its totient is φ = 481796.

The previous prime is 722669. The next prime is 722713. The reversal of 722697 is 796227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 722697 - 2⁶ = 722633 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722697.

It is not an unprimeable number, because it can be changed into a prime (722797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120447 + ... + 120452.

It is an arithmetic number, because the mean of its divisors is an integer number (240900).

2⁷²²⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

722697 is a deficient number, since it is larger than the sum of its proper divisors (240903).

722697 is a wasteful number, since it uses less digits than its factorization.

722697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240902.

The product of its digits is 10584, while the sum is 33.

The square root of 722697 is about 850.1158744548. The cubic root of 722697 is about 89.7398661235.

The spelling of 722697 in words is "seven hundred twenty-two thousand, six hundred ninety-seven".