974938199 has 2 divisors, whose sum is σ = 974938200. Its totient is φ = 974938198.

The previous prime is 974938171. The next prime is 974938207. The reversal of 974938199 is 991839479.

It is a strong prime.

It is an emirp because it is prime and its reverse (991839479) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974938199 is a prime.

It is a super-3 number, since 3×974938199³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (974938109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487469099 + 487469100.

It is an arithmetic number, because the mean of its divisors is an integer number (487469100).

Almost surely, 2^974938199 is an apocalyptic number.

974938199 is a deficient number, since it is larger than the sum of its proper divisors (1).

974938199 is an equidigital number, since it uses as much as digits as its factorization.

974938199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 59.

The square root of 974938199 is about 31224.0003683064. Note that the first 3 decimals coincide. The cubic root of 974938199 is about 991.5752899099.

The spelling of 974938199 in words is "nine hundred seventy-four million, nine hundred thirty-eight thousand, one hundred ninety-nine".