902172 has 12 divisors (see below), whose sum is σ = 2105096. Its totient is φ = 300720.

The previous prime is 902141. The next prime is 902179. The reversal of 902172 is 271209.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (902179) by changing a digit.

902172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37579 + ... + 37602.

2⁹⁰²¹⁷² is an apocalyptic number.

It is an amenable number.

902172 is an abundant number, since it is smaller than the sum of its proper divisors (1202924).

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

902172 is a wasteful number, since it uses less digits than its factorization.

902172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75188 (or 75186 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 902172 is about 949.8273527331. The cubic root of 902172 is about 96.6265443216.

The spelling of 902172 in words is "nine hundred two thousand, one hundred seventy-two".