199373564 has 24 divisors (see below), whose sum is σ = 380506560. Its totient is φ = 90851904.

The previous prime is 199373563. The next prime is 199373597. The reversal of 199373564 is 465373991.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199373563) 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, 20159 + ... + 28374.

It is an arithmetic number, because the mean of its divisors is an integer number (15854440).

Almost surely, 2^199373564 is an apocalyptic number.

It is an amenable number.

199373564 is a deficient number, since it is larger than the sum of its proper divisors (181132996).

199373564 is a wasteful number, since it uses less digits than its factorization.

199373564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48629 (or 48627 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 199373564 is about 14119.9703965695. The cubic root of 199373564 is about 584.1923390673.

It can be divided in two parts, 1993 and 73564, that added together give a palindrome (75557).

The spelling of 199373564 in words is "one hundred ninety-nine million, three hundred seventy-three thousand, five hundred sixty-four".