971957450 has 12 divisors (see below), whose sum is σ = 1807840950. Its totient is φ = 388782960.

The previous prime is 971957429. The next prime is 971957453. The reversal of 971957450 is 54759179.

It can be written as a sum of positive squares in 3 ways, for example, as 601279441 + 370678009 = 24521^2 + 19253^2 .

It is a super-2 number, since 2×971957450² = 1889402569221005000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 971957395 and 971957404.

It is not an unprimeable number, because it can be changed into a prime (971957453) 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, 9719525 + ... + 9719624.

Almost surely, 2^971957450 is an apocalyptic number.

971957450 is a deficient number, since it is larger than the sum of its proper divisors (835883500).

971957450 is a wasteful number, since it uses less digits than its factorization.

971957450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19439161 (or 19439156 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 47.

The square root of 971957450 is about 31176.2321328284. The cubic root of 971957450 is about 990.5637200331.

The spelling of 971957450 in words is "nine hundred seventy-one million, nine hundred fifty-seven thousand, four hundred fifty".