187997083 has 8 divisors (see below), whose sum is σ = 191041200. Its totient is φ = 184977408.

The previous prime is 187997081. The next prime is 187997107. The reversal of 187997083 is 380799781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 187997083 - 2¹ = 187997081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 187997083.

It is not an unprimeable number, because it can be changed into a prime (187997081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9723 + ... + 21691.

It is an arithmetic number, because the mean of its divisors is an integer number (23880150).

Almost surely, 2^187997083 is an apocalyptic number.

187997083 is a deficient number, since it is larger than the sum of its proper divisors (3044117).

187997083 is a wasteful number, since it uses less digits than its factorization.

187997083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12221.

The product of its (nonzero) digits is 762048, while the sum is 52.

The square root of 187997083 is about 13711.2028283444. The cubic root of 187997083 is about 572.8624687310.

The spelling of 187997083 in words is "one hundred eighty-seven million, nine hundred ninety-seven thousand, eighty-three".