199497604 has 6 divisors (see below), whose sum is σ = 349120814. Its totient is φ = 99748800.

The previous prime is 199497593. The next prime is 199497637. The reversal of 199497604 is 406794991.

It can be written as a sum of positive squares in only one way, i.e., 172975104 + 26522500 = 13152^2 + 5150^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24937197 + ... + 24937204.

Almost surely, 2^199497604 is an apocalyptic number.

It is an amenable number.

199497604 is a deficient number, since it is larger than the sum of its proper divisors (149623210).

199497604 is a wasteful number, since it uses less digits than its factorization.

199497604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49874405 (or 49874403 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 199497604 is about 14124.3620740903. The cubic root of 199497604 is about 584.3134654491.

The spelling of 199497604 in words is "one hundred ninety-nine million, four hundred ninety-seven thousand, six hundred four".