722985001 has 4 divisors (see below), whose sum is σ = 723892932. Its totient is φ = 722077072.

The previous prime is 722984957. The next prime is 722985019. The reversal of 722985001 is 100589227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 177528976 + 545456025 = 13324^2 + 23355^2 .

It is a cyclic number.

It is not a de Polignac number, because 722985001 - 2⁹ = 722984489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722986001) 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, 452770 + ... + 454363.

It is an arithmetic number, because the mean of its divisors is an integer number (180973233).

Almost surely, 2^722985001 is an apocalyptic number.

It is an amenable number.

722985001 is a deficient number, since it is larger than the sum of its proper divisors (907931).

722985001 is an equidigital number, since it uses as much as digits as its factorization.

722985001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907930.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 722985001 is about 26888.3804086449. The cubic root of 722985001 is about 897.5178524445.

The spelling of 722985001 in words is "seven hundred twenty-two million, nine hundred eighty-five thousand, one".