199087628 has 12 divisors (see below), whose sum is σ = 351600480. Its totient is φ = 98630352.

The previous prime is 199087627. The next prime is 199087633. The reversal of 199087628 is 826780991.

It is not an unprimeable number, because it can be changed into a prime (199087627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227876 + ... + 228747.

It is an arithmetic number, because the mean of its divisors is an integer number (29300040).

Almost surely, 2^199087628 is an apocalyptic number.

It is an amenable number.

199087628 is a deficient number, since it is larger than the sum of its proper divisors (152512852).

199087628 is a wasteful number, since it uses less digits than its factorization.

199087628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456736 (or 456734 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 199087628 is about 14109.8415299393. The cubic root of 199087628 is about 583.9129280019.

The spelling of 199087628 in words is "one hundred ninety-nine million, eighty-seven thousand, six hundred twenty-eight".