974938171 has 2 divisors, whose sum is σ = 974938172. Its totient is φ = 974938170.

The previous prime is 974938163. The next prime is 974938199. The reversal of 974938171 is 171839479.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 974938171 - 2³ = 974938163 is a prime.

It is not a weakly prime, because it can be changed into another prime (974938571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487469085 + 487469086.

It is an arithmetic number, because the mean of its divisors is an integer number (487469086).

Almost surely, 2^974938171 is an apocalyptic number.

974938171 is a deficient number, since it is larger than the sum of its proper divisors (1).

974938171 is an equidigital number, since it uses as much as digits as its factorization.

974938171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 49.

The square root of 974938171 is about 31223.9999199334. Note that the first 4 decimals coincide. The cubic root of 974938171 is about 991.5752804173.

The spelling of 974938171 in words is "nine hundred seventy-four million, nine hundred thirty-eight thousand, one hundred seventy-one".