722571 has 8 divisors (see below), whose sum is σ = 972864. Its totient is φ = 477000.

The previous prime is 722563. The next prime is 722581. The reversal of 722571 is 175227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 722571 - 2³ = 722563 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722571.

It is not an unprimeable number, because it can be changed into a prime (722521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805 + ... + 1446.

It is an arithmetic number, because the mean of its divisors is an integer number (121608).

2⁷²²⁵⁷¹ is an apocalyptic number.

722571 is a deficient number, since it is larger than the sum of its proper divisors (250293).

722571 is a wasteful number, since it uses less digits than its factorization.

722571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361.

The product of its digits is 980, while the sum is 24.

The square root of 722571 is about 850.0417636799. The cubic root of 722571 is about 89.7346505305.

Adding to 722571 its reverse (175227), we get a palindrome (897798).

It can be divided in two parts, 7 and 22571, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 722571 in words is "seven hundred twenty-two thousand, five hundred seventy-one".