199652993 has 2 divisors, whose sum is σ = 199652994. Its totient is φ = 199652992.

The previous prime is 199652953. The next prime is 199653001. The reversal of 199652993 is 399256991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197318209 + 2334784 = 14047^2 + 1528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199652993 is a prime.

It is a super-2 number, since 2×199652993² = 79722635227716098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (199652933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99826496 + 99826497.

It is an arithmetic number, because the mean of its divisors is an integer number (99826497).

Almost surely, 2^199652993 is an apocalyptic number.

It is an amenable number.

199652993 is a deficient number, since it is larger than the sum of its proper divisors (1).

199652993 is an equidigital number, since it uses as much as digits as its factorization.

199652993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1180980, while the sum is 53.

The square root of 199652993 is about 14129.8617473774. The cubic root of 199652993 is about 584.4651336392.

The spelling of 199652993 in words is "one hundred ninety-nine million, six hundred fifty-two thousand, nine hundred ninety-three".