199891034 has 8 divisors (see below), whose sum is σ = 342670368. Its totient is φ = 85667580.

The previous prime is 199890991. The next prime is 199891079. The reversal of 199891034 is 430198991.

199891034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 7138952 + ... + 7138979.

It is an arithmetic number, because the mean of its divisors is an integer number (42833796).

Almost surely, 2^199891034 is an apocalyptic number.

199891034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199891034 is a deficient number, since it is larger than the sum of its proper divisors (142779334).

199891034 is a wasteful number, since it uses less digits than its factorization.

199891034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14277940.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 199891034 is about 14138.2825689686. The cubic root of 199891034 is about 584.6973221763.

The spelling of 199891034 in words is "one hundred ninety-nine million, eight hundred ninety-one thousand, thirty-four".