197713893 has 16 divisors (see below), whose sum is σ = 300597696. Its totient is φ = 114512640.

The previous prime is 197713847. The next prime is 197713907. The reversal of 197713893 is 398317791.

It is not a de Polignac number, because 197713893 - 2²⁰ = 196665317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197713493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148443 + ... + 149768.

It is an arithmetic number, because the mean of its divisors is an integer number (18787356).

Almost surely, 2^197713893 is an apocalyptic number.

197713893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

197713893 is a deficient number, since it is larger than the sum of its proper divisors (102883803).

197713893 is a wasteful number, since it uses less digits than its factorization.

197713893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298244.

The product of its digits is 285768, while the sum is 48.

The square root of 197713893 is about 14061.0772346929. The cubic root of 197713893 is about 582.5667976471.

The spelling of 197713893 in words is "one hundred ninety-seven million, seven hundred thirteen thousand, eight hundred ninety-three".