199714997 has 4 divisors (see below), whose sum is σ = 211462956. Its totient is φ = 187967040.

The previous prime is 199714987. The next prime is 199715027. The reversal of 199714997 is 799417991.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113763556 + 85951441 = 10666^2 + 9271^2 .

It is a cyclic number.

It is not a de Polignac number, because 199714997 - 2¹⁴ = 199698613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199714987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5873954 + ... + 5873987.

It is an arithmetic number, because the mean of its divisors is an integer number (52865739).

Almost surely, 2^199714997 is an apocalyptic number.

199714997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

199714997 is a deficient number, since it is larger than the sum of its proper divisors (11747959).

199714997 is a wasteful number, since it uses less digits than its factorization.

199714997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11747958.

The product of its digits is 1285956, while the sum is 56.

The square root of 199714997 is about 14132.0556537257. The cubic root of 199714997 is about 584.5256309798.

The spelling of 199714997 in words is "one hundred ninety-nine million, seven hundred fourteen thousand, nine hundred ninety-seven".