199471007 has 2 divisors, whose sum is σ = 199471008. Its totient is φ = 199471006.

The previous prime is 199471001. The next prime is 199471009. The reversal of 199471007 is 700174991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199471007 - 2⁴ = 199470991 is a prime.

Together with 199471009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199471001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99735503 + 99735504.

It is an arithmetic number, because the mean of its divisors is an integer number (99735504).

Almost surely, 2^199471007 is an apocalyptic number.

199471007 is a deficient number, since it is larger than the sum of its proper divisors (1).

199471007 is an equidigital number, since it uses as much as digits as its factorization.

199471007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 199471007 is about 14123.4205134592. The cubic root of 199471007 is about 584.2874974247.

The spelling of 199471007 in words is "one hundred ninety-nine million, four hundred seventy-one thousand, seven".