187030697 has 20 divisors (see below), whose sum is σ = 221940036. Its totient is φ = 157560480.

The previous prime is 187030691. The next prime is 187030709. The reversal of 187030697 is 796030781.

It can be written as a sum of positive squares in 2 ways, for example, as 53304601 + 133726096 = 7301^2 + 11564^2 .

It is not a de Polignac number, because 187030697 - 2⁶ = 187030633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187030691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 145823 + ... + 147099.

Almost surely, 2^187030697 is an apocalyptic number.

It is an amenable number.

187030697 is a deficient number, since it is larger than the sum of its proper divisors (34909339).

187030697 is an frugal number, since it uses more digits than its factorization.

187030697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 187030697 is about 13675.9166785996. The cubic root of 187030697 is about 571.8791953548.

The spelling of 187030697 in words is "one hundred eighty-seven million, thirty thousand, six hundred ninety-seven".