7894172 has 48 divisors (see below), whose sum is σ = 16713312. Its totient is φ = 3214080.

The previous prime is 7894157. The next prime is 7894207. The reversal of 7894172 is 2714987.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20978 + ... + 21350.

It is an arithmetic number, because the mean of its divisors is an integer number (348194).

Almost surely, 2^7894172 is an apocalyptic number.

It is an amenable number.

7894172 is an abundant number, since it is smaller than the sum of its proper divisors (8819140).

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

7894172 is a wasteful number, since it uses less digits than its factorization.

7894172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 436 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 7894172 is about 2809.6569185579. The cubic root of 7894172 is about 199.1141824285.

The spelling of 7894172 in words is "seven million, eight hundred ninety-four thousand, one hundred seventy-two".