8618172 has 24 divisors (see below), whose sum is σ = 21168000. Its totient is φ = 2721456.

The previous prime is 8618149. The next prime is 8618173. The reversal of 8618172 is 2718168.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8618173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18672 + ... + 19127.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 2^8618172 is an apocalyptic number.

It is an amenable number.

8618172 is an abundant number, since it is smaller than the sum of its proper divisors (12549828).

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

8618172 is a wasteful number, since it uses less digits than its factorization.

8618172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37825 (or 37823 counting only the distinct ones).

The product of its digits is 5376, while the sum is 33.

The square root of 8618172 is about 2935.6723250390. The cubic root of 8618172 is about 205.0241653052.

The spelling of 8618172 in words is "eight million, six hundred eighteen thousand, one hundred seventy-two".