187883649 has 12 divisors (see below), whose sum is σ = 271726416. Its totient is φ = 125099352.

The previous prime is 187883629. The next prime is 187883651. The reversal of 187883649 is 946388781.

It is not a de Polignac number, because 187883649 - 2¹⁵ = 187850881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 187883595 and 187883604.

It is not an unprimeable number, because it can be changed into a prime (187883629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5179 + ... + 20064.

It is an arithmetic number, because the mean of its divisors is an integer number (22643868).

Almost surely, 2^187883649 is an apocalyptic number.

It is an amenable number.

187883649 is a deficient number, since it is larger than the sum of its proper divisors (83842767).

187883649 is a wasteful number, since it uses less digits than its factorization.

187883649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26076 (or 26073 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 187883649 is about 13707.0656597245. The cubic root of 187883649 is about 572.7472273058.

The spelling of 187883649 in words is "one hundred eighty-seven million, eight hundred eighty-three thousand, six hundred forty-nine".