722677153 has 4 divisors (see below), whose sum is σ = 788375088. Its totient is φ = 656979220.

The previous prime is 722677147. The next prime is 722677199. The reversal of 722677153 is 351776227.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 722677153 - 2⁹ = 722676641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722677133) 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, 32848951 + ... + 32848972.

It is an arithmetic number, because the mean of its divisors is an integer number (197093772).

Almost surely, 2^722677153 is an apocalyptic number.

It is an amenable number.

722677153 is a deficient number, since it is larger than the sum of its proper divisors (65697935).

722677153 is a wasteful number, since it uses less digits than its factorization.

722677153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65697934.

The product of its digits is 123480, while the sum is 40.

The square root of 722677153 is about 26882.6552445996. The cubic root of 722677153 is about 897.3904462508.

The spelling of 722677153 in words is "seven hundred twenty-two million, six hundred seventy-seven thousand, one hundred fifty-three".