971667297 has 6 divisors (see below), whose sum is σ = 1403519442. Its totient is φ = 647778192.

The previous prime is 971667247. The next prime is 971667337. The reversal of 971667297 is 792766179.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 834285456 + 137381841 = 28884^2 + 11721^2 .

It is not a de Polignac number, because 971667297 - 2⁸ = 971667041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (971667247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53981508 + ... + 53981525.

It is an arithmetic number, because the mean of its divisors is an integer number (233919907).

Almost surely, 2^971667297 is an apocalyptic number.

It is an amenable number.

971667297 is a deficient number, since it is larger than the sum of its proper divisors (431852145).

971667297 is a wasteful number, since it uses less digits than its factorization.

971667297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107963039 (or 107963036 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 54.

The square root of 971667297 is about 31171.5783527238. The cubic root of 971667297 is about 990.4651410813.

The spelling of 971667297 in words is "nine hundred seventy-one million, six hundred sixty-seven thousand, two hundred ninety-seven".