199084797 has 64 divisors (see below), whose sum is σ = 320390400. Its totient is φ = 123451776.

The previous prime is 199084783. The next prime is 199084799. The reversal of 199084797 is 797480991.

It is not a de Polignac number, because 199084797 - 2²⁶ = 131975933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199084799) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2727153 + ... + 2727225.

It is an arithmetic number, because the mean of its divisors is an integer number (5006100).

Almost surely, 2^199084797 is an apocalyptic number.

It is an amenable number.

199084797 is a deficient number, since it is larger than the sum of its proper divisors (121305603).

199084797 is an frugal number, since it uses more digits than its factorization.

199084797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 199084797 is about 14109.7412095332. The cubic root of 199084797 is about 583.9101602670.

The spelling of 199084797 in words is "one hundred ninety-nine million, eighty-four thousand, seven hundred ninety-seven".