197890263 has 32 divisors (see below), whose sum is σ = 311520000. Its totient is φ = 123801696.

The previous prime is 197890261. The next prime is 197890271. The reversal of 197890263 is 362098791.

It is not a de Polignac number, because 197890263 - 2¹ = 197890261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197890261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54148 + ... + 57686.

It is an arithmetic number, because the mean of its divisors is an integer number (9735000).

Almost surely, 2^197890263 is an apocalyptic number.

197890263 is a deficient number, since it is larger than the sum of its proper divisors (113629737).

197890263 is a wasteful number, since it uses less digits than its factorization.

197890263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 197890263 is about 14067.3474045394. The cubic root of 197890263 is about 582.7399717354.

The spelling of 197890263 in words is "one hundred ninety-seven million, eight hundred ninety thousand, two hundred sixty-three".