27420172 has 24 divisors (see below), whose sum is σ = 52038000. Its totient is φ = 12566976.

The previous prime is 27420157. The next prime is 27420179. The reversal of 27420172 is 27102472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27420179) 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, 5979 + ... + 9517.

It is an arithmetic number, because the mean of its divisors is an integer number (2168250).

Almost surely, 2^27420172 is an apocalyptic number.

It is an amenable number.

27420172 is a deficient number, since it is larger than the sum of its proper divisors (24617828).

27420172 is a wasteful number, since it uses less digits than its factorization.

27420172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3705 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 27420172 is about 5236.4274080713. The cubic root of 27420172 is about 301.5481892159.

The spelling of 27420172 in words is "twenty-seven million, four hundred twenty thousand, one hundred seventy-two".