199679630 has 16 divisors (see below), whose sum is σ = 359684064. Its totient is φ = 79813920.

The previous prime is 199679621. The next prime is 199679633. The reversal of 199679630 is 36976991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199679633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8960 + ... + 21900.

It is an arithmetic number, because the mean of its divisors is an integer number (22480254).

Almost surely, 2^199679630 is an apocalyptic number.

199679630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199679630 is a deficient number, since it is larger than the sum of its proper divisors (160004434).

199679630 is a wasteful number, since it uses less digits than its factorization.

199679630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14491.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 199679630 is about 14130.8042941653. The cubic root of 199679630 is about 584.4911249108.

The spelling of 199679630 in words is "one hundred ninety-nine million, six hundred seventy-nine thousand, six hundred thirty".