997302571 has 12 divisors (see below), whose sum is σ = 1068290472. Its totient is φ = 930688704.

The previous prime is 997302511. The next prime is 997302577. The reversal of 997302571 is 175203799.

It is not a de Polignac number, because 997302571 - 2¹³ = 997294379 is a prime.

It is a super-2 number, since 2×997302571² = 1989224836246420082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997302577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3571 + ... + 44803.

It is an arithmetic number, because the mean of its divisors is an integer number (89024206).

Almost surely, 2^997302571 is an apocalyptic number.

997302571 is a deficient number, since it is larger than the sum of its proper divisors (70987901).

997302571 is a wasteful number, since it uses less digits than its factorization.

With its successor (997302572) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (41319).

997302571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41338 (or 41319 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 997302571 is about 31580.0977040921. The cubic root of 997302571 is about 999.1000473282.

The spelling of 997302571 in words is "nine hundred ninety-seven million, three hundred two thousand, five hundred seventy-one".