722743501 has 4 divisors (see below), whose sum is σ = 722843712. Its totient is φ = 722643292.

The previous prime is 722743493. The next prime is 722743529. The reversal of 722743501 is 105347227.

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, and also an emirpimes, since its reverse is a distinct semiprime: 105347227 = 29 ⋅3632663.

It is a cyclic number.

It is not a de Polignac number, because 722743501 - 2³ = 722743493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722743561) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38371 + ... + 54016.

It is an arithmetic number, because the mean of its divisors is an integer number (180710928).

Almost surely, 2^722743501 is an apocalyptic number.

It is an amenable number.

722743501 is a deficient number, since it is larger than the sum of its proper divisors (100211).

722743501 is an equidigital number, since it uses as much as digits as its factorization.

722743501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100210.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 722743501 is about 26883.8892461638. The cubic root of 722743501 is about 897.4179081398.

The spelling of 722743501 in words is "seven hundred twenty-two million, seven hundred forty-three thousand, five hundred one".