107989187 has 2 divisors, whose sum is σ = 107989188. Its totient is φ = 107989186.

The previous prime is 107989183. The next prime is 107989201. The reversal of 107989187 is 781989701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 107989187 - 2² = 107989183 is a prime.

It is not a weakly prime, because it can be changed into another prime (107989183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53994593 + 53994594.

It is an arithmetic number, because the mean of its divisors is an integer number (53994594).

Almost surely, 2^107989187 is an apocalyptic number.

107989187 is a deficient number, since it is larger than the sum of its proper divisors (1).

107989187 is an equidigital number, since it uses as much as digits as its factorization.

107989187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 50.

The square root of 107989187 is about 10391.7845916859. The cubic root of 107989187 is about 476.2044219419.

The spelling of 107989187 in words is "one hundred seven million, nine hundred eighty-nine thousand, one hundred eighty-seven".