7642172 has 12 divisors (see below), whose sum is σ = 13394640. Its totient is φ = 3815136.

The previous prime is 7642171. The next prime is 7642181. The reversal of 7642172 is 2712467.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642171) 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, 2729 + ... + 4767.

It is an arithmetic number, because the mean of its divisors is an integer number (1116220).

Almost surely, 2^7642172 is an apocalyptic number.

It is an amenable number.

7642172 is a deficient number, since it is larger than the sum of its proper divisors (5752468).

7642172 is a wasteful number, since it uses less digits than its factorization.

7642172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 2978 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 7642172 is about 2764.4478653069. The cubic root of 7642172 is about 196.9725025394.

The spelling of 7642172 in words is "seven million, six hundred forty-two thousand, one hundred seventy-two".