197923398 has 8 divisors (see below), whose sum is σ = 395846808. Its totient is φ = 65974464.

The previous prime is 197923391. The next prime is 197923403. The reversal of 197923398 is 893329791.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

197923398 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 197923398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197923391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16493611 + ... + 16493622.

It is an arithmetic number, because the mean of its divisors is an integer number (49480851).

Almost surely, 2^197923398 is an apocalyptic number.

197923398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197923398 is a wasteful number, since it uses less digits than its factorization.

197923398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32987238.

The product of its digits is 734832, while the sum is 51.

The square root of 197923398 is about 14068.5250826091. The cubic root of 197923398 is about 582.7724948302.

The spelling of 197923398 in words is "one hundred ninety-seven million, nine hundred twenty-three thousand, three hundred ninety-eight".