6172668 has 36 divisors (see below), whose sum is σ = 15684760. Its totient is φ = 2046816.

The previous prime is 6172667. The next prime is 6172697. The reversal of 6172668 is 8662716.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6172667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9663 + ... + 10281.

Almost surely, 2^6172668 is an apocalyptic number.

It is an amenable number.

6172668 is an abundant number, since it is smaller than the sum of its proper divisors (9512092).

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

6172668 is a wasteful number, since it uses less digits than its factorization.

6172668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 901 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 6172668 is about 2484.4854598085. The cubic root of 6172668 is about 183.4387037979.

The spelling of 6172668 in words is "six million, one hundred seventy-two thousand, six hundred sixty-eight".