722374687 has 2 divisors, whose sum is σ = 722374688. Its totient is φ = 722374686.

The previous prime is 722374651. The next prime is 722374703. The reversal of 722374687 is 786473227.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722374687 - 2¹¹ = 722372639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722374187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361187343 + 361187344.

It is an arithmetic number, because the mean of its divisors is an integer number (361187344).

Almost surely, 2^722374687 is an apocalyptic number.

722374687 is a deficient number, since it is larger than the sum of its proper divisors (1).

722374687 is an equidigital number, since it uses as much as digits as its factorization.

722374687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272, while the sum is 46.

The square root of 722374687 is about 26877.0289838739. The cubic root of 722374687 is about 897.2652322120.

The spelling of 722374687 in words is "seven hundred twenty-two million, three hundred seventy-four thousand, six hundred eighty-seven".