27502972 has 48 divisors (see below), whose sum is σ = 57480192. Its totient is φ = 11269440.

The previous prime is 27502967. The next prime is 27502987. The reversal of 27502972 is 27920572.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

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, 63597 + ... + 64027.

It is an arithmetic number, because the mean of its divisors is an integer number (1197504).

Almost surely, 2^27502972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27502972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28740096).

27502972 is an abundant number, since it is smaller than the sum of its proper divisors (29977220).

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

27502972 is a wasteful number, since it uses less digits than its factorization.

27502972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 536 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 27502972 is about 5244.3276022766. The cubic root of 27502972 is about 301.8514100249.

The spelling of 27502972 in words is "twenty-seven million, five hundred two thousand, nine hundred seventy-two".