197814087 has 6 divisors (see below), whose sum is σ = 285731472. Its totient is φ = 131876052.

The previous prime is 197814059. The next prime is 197814103. The reversal of 197814087 is 780418791.

It is not a de Polignac number, because 197814087 - 2¹² = 197809991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197814037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10989663 + ... + 10989680.

It is an arithmetic number, because the mean of its divisors is an integer number (47621912).

Almost surely, 2^197814087 is an apocalyptic number.

197814087 is a deficient number, since it is larger than the sum of its proper divisors (87917385).

197814087 is a wasteful number, since it uses less digits than its factorization.

197814087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21979349 (or 21979346 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The square root of 197814087 is about 14064.6395972311. The cubic root of 197814087 is about 582.6651887107.

The spelling of 197814087 in words is "one hundred ninety-seven million, eight hundred fourteen thousand, eighty-seven".