974221271 has 2 divisors, whose sum is σ = 974221272. Its totient is φ = 974221270.

The previous prime is 974221247. The next prime is 974221291. The reversal of 974221271 is 172122479.

It is a strong prime.

It is an emirp because it is prime and its reverse (172122479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 974221271 - 2²⁶ = 907112407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (974221291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487110635 + 487110636.

It is an arithmetic number, because the mean of its divisors is an integer number (487110636).

Almost surely, 2^974221271 is an apocalyptic number.

974221271 is a deficient number, since it is larger than the sum of its proper divisors (1).

974221271 is an equidigital number, since it uses as much as digits as its factorization.

974221271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 974221271 is about 31212.5178574238. The cubic root of 974221271 is about 991.3321762392.

It can be divided in two parts, 9742 and 21271, that added together give a palindrome (31013).

The spelling of 974221271 in words is "nine hundred seventy-four million, two hundred twenty-one thousand, two hundred seventy-one".