722571745 has 8 divisors (see below), whose sum is σ = 990955584. Its totient is φ = 495477744.

The previous prime is 722571719. The next prime is 722571763. The reversal of 722571745 is 547175227.

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

It is a cyclic number.

It is not a de Polignac number, because 722571745 - 2⁹ = 722571233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722571698 and 722571707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10322419 + ... + 10322488.

It is an arithmetic number, because the mean of its divisors is an integer number (123869448).

Almost surely, 2^722571745 is an apocalyptic number.

It is an amenable number.

722571745 is a deficient number, since it is larger than the sum of its proper divisors (268383839).

722571745 is a wasteful number, since it uses less digits than its factorization.

722571745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20644919.

The product of its digits is 137200, while the sum is 40.

The square root of 722571745 is about 26880.6946524825. The cubic root of 722571745 is about 897.3468137052.

The spelling of 722571745 in words is "seven hundred twenty-two million, five hundred seventy-one thousand, seven hundred forty-five".