187974 has 24 divisors (see below), whose sum is σ = 424920. Its totient is φ = 61596.

The previous prime is 187973. The next prime is 187987. The reversal of 187974 is 479781.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3157 + ... + 3215.

It is an arithmetic number, because the mean of its divisors is an integer number (17705).

2¹⁸⁷⁹⁷⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 187974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212460).

187974 is an abundant number, since it is smaller than the sum of its proper divisors (236946).

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

187974 is an equidigital number, since it uses as much as digits as its factorization.

187974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 64 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 187974 is about 433.5596844726. The cubic root of 187974 is about 57.2839021691.

It can be divided in two parts, 1879 and 74, that added together give a triangular number (1953 = T₆₂).

The spelling of 187974 in words is "one hundred eighty-seven thousand, nine hundred seventy-four".