187328701 has 4 divisors (see below), whose sum is σ = 214089952. Its totient is φ = 160567452.

The previous prime is 187328693. The next prime is 187328707. The reversal of 187328701 is 107823781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 187328701 - 2³ = 187328693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187328707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13380615 + ... + 13380628.

It is an arithmetic number, because the mean of its divisors is an integer number (53522488).

Almost surely, 2^187328701 is an apocalyptic number.

It is an amenable number.

187328701 is a deficient number, since it is larger than the sum of its proper divisors (26761251).

187328701 is an equidigital number, since it uses as much as digits as its factorization.

187328701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26761250.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 187328701 is about 13686.8075532609. The cubic root of 187328701 is about 572.1827673651.

The spelling of 187328701 in words is "one hundred eighty-seven million, three hundred twenty-eight thousand, seven hundred one".