187680213 has 32 divisors (see below), whose sum is σ = 318501120. Its totient is φ = 106997760.

The previous prime is 187680203. The next prime is 187680217. The reversal of 187680213 is 312086781.

It is not a de Polignac number, because 187680213 - 2⁶ = 187680149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187680217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108193 + ... + 109913.

It is an arithmetic number, because the mean of its divisors is an integer number (9953160).

Almost surely, 2^187680213 is an apocalyptic number.

It is an amenable number.

187680213 is a deficient number, since it is larger than the sum of its proper divisors (130820907).

187680213 is a wasteful number, since it uses less digits than its factorization.

187680213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 2308 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 187680213 is about 13699.6428055625. The cubic root of 187680213 is about 572.5404335712.

The spelling of 187680213 in words is "one hundred eighty-seven million, six hundred eighty thousand, two hundred thirteen".