199976830 has 8 divisors (see below), whose sum is σ = 359958312. Its totient is φ = 79990728.

The previous prime is 199976827. The next prime is 199976851. The reversal of 199976830 is 38679991.

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

It is a congruent number.

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, 9998832 + ... + 9998851.

It is an arithmetic number, because the mean of its divisors is an integer number (44994789).

Almost surely, 2^199976830 is an apocalyptic number.

199976830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199976830 is a deficient number, since it is larger than the sum of its proper divisors (159981482).

199976830 is a wasteful number, since it uses less digits than its factorization.

199976830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19997690.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 199976830 is about 14141.3164167980. The cubic root of 199976830 is about 584.7809636068.

The spelling of 199976830 in words is "one hundred ninety-nine million, nine hundred seventy-six thousand, eight hundred thirty".