27970172 has 6 divisors (see below), whose sum is σ = 48947808. Its totient is φ = 13985084.

The previous prime is 27970141. The next prime is 27970193. The reversal of 27970172 is 27107972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3496268 + ... + 3496275.

It is an arithmetic number, because the mean of its divisors is an integer number (8157968).

Almost surely, 2^27970172 is an apocalyptic number.

It is an amenable number.

27970172 is a deficient number, since it is larger than the sum of its proper divisors (20977636).

27970172 is a wasteful number, since it uses less digits than its factorization.

27970172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6992547 (or 6992545 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 27970172 is about 5288.6833900320. The cubic root of 27970172 is about 303.5510310473.

The spelling of 27970172 in words is "twenty-seven million, nine hundred seventy thousand, one hundred seventy-two".