187382864 has 20 divisors (see below), whose sum is σ = 382163040. Its totient is φ = 88760160.

The previous prime is 187382831. The next prime is 187382869. The reversal of 187382864 is 468283781.

It is a super-2 number, since 2×187382864² = 70224675441684992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187382869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307892 + ... + 308499.

It is an arithmetic number, because the mean of its divisors is an integer number (19108152).

Almost surely, 2^187382864 is an apocalyptic number.

It is an amenable number.

187382864 is an abundant number, since it is smaller than the sum of its proper divisors (194780176).

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

187382864 is a wasteful number, since it uses less digits than its factorization.

187382864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616418 (or 616412 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 187382864 is about 13688.7860674349. The cubic root of 187382864 is about 572.2379077835.

The spelling of 187382864 in words is "one hundred eighty-seven million, three hundred eighty-two thousand, eight hundred sixty-four".