199760690 has 8 divisors (see below), whose sum is σ = 359569260. Its totient is φ = 79904272.

The previous prime is 199760689. The next prime is 199760719. The reversal of 199760690 is 96067991.

It is a happy number.

199760690 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 2 ways, for example, as 169806961 + 29953729 = 13031^2 + 5473^2 .

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

It is a super-2 number, since 2×199760690² = 79808666538552200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9988025 + ... + 9988044.

Almost surely, 2^199760690 is an apocalyptic number.

199760690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199760690 is a deficient number, since it is larger than the sum of its proper divisors (159808570).

199760690 is a wasteful number, since it uses less digits than its factorization.

199760690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19976076.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 199760690 is about 14133.6722050570. The cubic root of 199760690 is about 584.5702056544.

The spelling of 199760690 in words is "one hundred ninety-nine million, seven hundred sixty thousand, six hundred ninety".