722171672 has 16 divisors (see below), whose sum is σ = 1373144400. Its totient is φ = 355999840.

The previous prime is 722171651. The next prime is 722171677. The reversal of 722171672 is 276171227.

722171672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722171677) 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, 635147 + ... + 636282.

It is an arithmetic number, because the mean of its divisors is an integer number (85821525).

Almost surely, 2^722171672 is an apocalyptic number.

It is an amenable number.

722171672 is a deficient number, since it is larger than the sum of its proper divisors (650972728).

722171672 is a wasteful number, since it uses less digits than its factorization.

722171672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271506 (or 1271502 counting only the distinct ones).

The product of its digits is 16464, while the sum is 35.

The square root of 722171672 is about 26873.2519803614. The cubic root of 722171672 is about 897.1811690189.

The spelling of 722171672 in words is "seven hundred twenty-two million, one hundred seventy-one thousand, six hundred seventy-two".