722631147 has 8 divisors (see below), whose sum is σ = 1101152256. Its totient is φ = 412932072.

The previous prime is 722631137. The next prime is 722631149. The reversal of 722631147 is 741136227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 722631147 - 2⁶ = 722631083 is a prime.

It is a super-2 number, since 2×722631147² = 1044391549229071218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722631149) 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 7 ways as a sum of consecutive naturals, for example, 17205483 + ... + 17205524.

It is an arithmetic number, because the mean of its divisors is an integer number (137644032).

Almost surely, 2^722631147 is an apocalyptic number.

722631147 is a deficient number, since it is larger than the sum of its proper divisors (378521109).

722631147 is a wasteful number, since it uses less digits than its factorization.

722631147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34411017.

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

The square root of 722631147 is about 26881.7995491373. The cubic root of 722631147 is about 897.3714030672.

The spelling of 722631147 in words is "seven hundred twenty-two million, six hundred thirty-one thousand, one hundred forty-seven".