722865087 has 16 divisors (see below), whose sum is σ = 1223898880. Its totient is φ = 413065656.

The previous prime is 722865079. The next prime is 722865133. The reversal of 722865087 is 780568227.

It is not a de Polignac number, because 722865087 - 2³ = 722865079 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 (722865487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912153 + ... + 1912530.

It is an arithmetic number, because the mean of its divisors is an integer number (76493680).

Almost surely, 2^722865087 is an apocalyptic number.

722865087 is a deficient number, since it is larger than the sum of its proper divisors (501033793).

722865087 is a wasteful number, since it uses less digits than its factorization.

722865087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824699 (or 3824693 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 722865087 is about 26886.1504682243. The cubic root of 722865087 is about 897.4682290515.

The spelling of 722865087 in words is "seven hundred twenty-two million, eight hundred sixty-five thousand, eighty-seven".