197713894 has 16 divisors (see below), whose sum is σ = 339188256. Its totient is φ = 84672000.

The previous prime is 197713847. The next prime is 197713907. The reversal of 197713894 is 498317791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18004 + ... + 26824.

It is an arithmetic number, because the mean of its divisors is an integer number (21199266).

Almost surely, 2^197713894 is an apocalyptic number.

197713894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

197713894 is a deficient number, since it is larger than the sum of its proper divisors (141474362).

197713894 is a wasteful number, since it uses less digits than its factorization.

197713894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10431.

The product of its digits is 381024, while the sum is 49.

The square root of 197713894 is about 14061.0772702521. The cubic root of 197713894 is about 582.5667986293.

The spelling of 197713894 in words is "one hundred ninety-seven million, seven hundred thirteen thousand, eight hundred ninety-four".