187066897 has 2 divisors, whose sum is σ = 187066898. Its totient is φ = 187066896.

The previous prime is 187066883. The next prime is 187066937. The reversal of 187066897 is 798660781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155975121 + 31091776 = 12489^2 + 5576^2 .

It is a cyclic number.

It is not a de Polignac number, because 187066897 - 2¹¹ = 187064849 is a prime.

It is not a weakly prime, because it can be changed into another prime (187066877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93533448 + 93533449.

It is an arithmetic number, because the mean of its divisors is an integer number (93533449).

Almost surely, 2^187066897 is an apocalyptic number.

It is an amenable number.

187066897 is a deficient number, since it is larger than the sum of its proper divisors (1).

187066897 is an equidigital number, since it uses as much as digits as its factorization.

187066897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 187066897 is about 13677.2401090278. The cubic root of 187066897 is about 571.9160889266.

The spelling of 187066897 in words is "one hundred eighty-seven million, sixty-six thousand, eight hundred ninety-seven".