623281172 has 12 divisors (see below), whose sum is σ = 1091487936. Its totient is φ = 311427480.

The previous prime is 623281171. The next prime is 623281229. The reversal of 623281172 is 271182326.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623281171) 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, 46604 + ... + 58467.

It is an arithmetic number, because the mean of its divisors is an integer number (90957328).

Almost surely, 2^623281172 is an apocalyptic number.

It is an amenable number.

623281172 is a deficient number, since it is larger than the sum of its proper divisors (468206764).

623281172 is a wasteful number, since it uses less digits than its factorization.

623281172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106558 (or 106556 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 623281172 is about 24965.5997724869. The cubic root of 623281172 is about 854.2034792029.

The spelling of 623281172 in words is "six hundred twenty-three million, two hundred eighty-one thousand, one hundred seventy-two".