199272993 has 8 divisors (see below), whose sum is σ = 265882656. Its totient is φ = 132756000.

The previous prime is 199272979. The next prime is 199273001. The reversal of 199272993 is 399272991.

It is a happy number.

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

It is not a de Polignac number, because 199272993 - 2⁴ = 199272977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199272973) 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, 17983 + ... + 26868.

It is an arithmetic number, because the mean of its divisors is an integer number (33235332).

Almost surely, 2^199272993 is an apocalyptic number.

It is an amenable number.

199272993 is a deficient number, since it is larger than the sum of its proper divisors (66609663).

199272993 is a wasteful number, since it uses less digits than its factorization.

199272993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46335.

The product of its digits is 551124, while the sum is 51.

The square root of 199272993 is about 14116.4086438442. The cubic root of 199272993 is about 584.0940935288.

The spelling of 199272993 in words is "one hundred ninety-nine million, two hundred seventy-two thousand, nine hundred ninety-three".