199260685 has 8 divisors (see below), whose sum is σ = 257506200. Its totient is φ = 147146304.

The previous prime is 199260679. The next prime is 199260701. The reversal of 199260685 is 586062991.

199260685 = 9981² + 9982².

199260685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3988009 + 195272676 = 1997^2 + 13974^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 199260685 - 2¹⁷ = 199129613 is a prime.

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, 1532710 + ... + 1532839.

It is an arithmetic number, because the mean of its divisors is an integer number (32188275).

Almost surely, 2^199260685 is an apocalyptic number.

199260685 is the 9982-nd centered square number.

It is an amenable number.

199260685 is a deficient number, since it is larger than the sum of its proper divisors (58245515).

199260685 is a wasteful number, since it uses less digits than its factorization.

199260685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065567.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 199260685 is about 14115.9726905375. The cubic root of 199260685 is about 584.0820678515.

The spelling of 199260685 in words is "one hundred ninety-nine million, two hundred sixty thousand, six hundred eighty-five".