199882429 has 2 divisors, whose sum is σ = 199882430. Its totient is φ = 199882428.

The previous prime is 199882427. The next prime is 199882477. The reversal of 199882429 is 924288991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153710404 + 46172025 = 12398^2 + 6795^2 .

It is a cyclic number.

It is not a de Polignac number, because 199882429 - 2¹ = 199882427 is a prime.

Together with 199882427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199882427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99941214 + 99941215.

It is an arithmetic number, because the mean of its divisors is an integer number (99941215).

Almost surely, 2^199882429 is an apocalyptic number.

It is an amenable number.

199882429 is a deficient number, since it is larger than the sum of its proper divisors (1).

199882429 is an equidigital number, since it uses as much as digits as its factorization.

199882429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 52.

The square root of 199882429 is about 14137.9782500894. The cubic root of 199882429 is about 584.6889319507.

The spelling of 199882429 in words is "one hundred ninety-nine million, eight hundred eighty-two thousand, four hundred twenty-nine".