97297971 has 4 divisors (see below), whose sum is σ = 129730632. Its totient is φ = 64865312.

The previous prime is 97297957. The next prime is 97297973. The reversal of 97297971 is 17979279.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97297971 - 2¹⁷ = 97166899 is a prime.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (97297973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16216326 + ... + 16216331.

It is an arithmetic number, because the mean of its divisors is an integer number (32432658).

Almost surely, 2^97297971 is an apocalyptic number.

97297971 is a deficient number, since it is larger than the sum of its proper divisors (32432661).

97297971 is a wasteful number, since it uses less digits than its factorization.

97297971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32432660.

The product of its digits is 500094, while the sum is 51.

The square root of 97297971 is about 9863.9733880420. The cubic root of 97297971 is about 459.9400851391.

The spelling of 97297971 in words is "ninety-seven million, two hundred ninety-seven thousand, nine hundred seventy-one".