1673957172 has 12 divisors (see below), whose sum is σ = 3905900096. Its totient is φ = 557985720.

The previous prime is 1673957167. The next prime is 1673957179. The reversal of 1673957172 is 2717593761.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1673957172² = 5604265227380475168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673957179) 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, 69748204 + ... + 69748227.

Almost surely, 2^1673957172 is an apocalyptic number.

1673957172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1673957172 is an abundant number, since it is smaller than the sum of its proper divisors (2231942924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1673957172 is a wasteful number, since it uses less digits than its factorization.

1673957172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139496438 (or 139496436 counting only the distinct ones).

The product of its digits is 555660, while the sum is 48.

The square root of 1673957172 is about 40914.0217040564. The cubic root of 1673957172 is about 1187.3573568571.

The spelling of 1673957172 in words is "one billion, six hundred seventy-three million, nine hundred fifty-seven thousand, one hundred seventy-two".