27973500 has 96 divisors (see below), whose sum is σ = 86329152. Its totient is φ = 7014400.

The previous prime is 27973499. The next prime is 27973511. The reversal of 27973500 is 537972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24952 + ... + 26048.

It is an arithmetic number, because the mean of its divisors is an integer number (899262).

Almost surely, 2^27973500 is an apocalyptic number.

27973500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27973500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43164576).

27973500 is an abundant number, since it is smaller than the sum of its proper divisors (58355652).

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

27973500 is a wasteful number, since it uses less digits than its factorization.

27973500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 27973500 is about 5288.9980147472. The cubic root of 27973500 is about 303.5630697979.

Subtracting from 27973500 its reverse (537972), we obtain a triangular number (27435528 = T₇₄₀₇).

The spelling of 27973500 in words is "twenty-seven million, nine hundred seventy-three thousand, five hundred".