722261607 has 4 divisors (see below), whose sum is σ = 963015480. Its totient is φ = 481507736.

The previous prime is 722261597. The next prime is 722261623. The reversal of 722261607 is 706162227.

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

It is a cyclic number.

It is not a de Polignac number, because 722261607 - 2¹⁵ = 722228839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722268607) 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, 120376932 + ... + 120376937.

It is an arithmetic number, because the mean of its divisors is an integer number (240753870).

Almost surely, 2^722261607 is an apocalyptic number.

722261607 is a deficient number, since it is larger than the sum of its proper divisors (240753873).

722261607 is a wasteful number, since it uses less digits than its factorization.

722261607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240753872.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 722261607 is about 26874.9252464077. The cubic root of 722261607 is about 897.2184106898.

The spelling of 722261607 in words is "seven hundred twenty-two million, two hundred sixty-one thousand, six hundred seven".