97531071 has 16 divisors (see below), whose sum is σ = 144270720. Its totient is φ = 58106720.

The previous prime is 97531043. The next prime is 97531081. The reversal of 97531071 is 17013579.

It is a cyclic number.

It is not a de Polignac number, because 97531071 - 2⁵ = 97531039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97531081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23100 + ... + 26993.

It is an arithmetic number, because the mean of its divisors is an integer number (9016920).

Almost surely, 2^97531071 is an apocalyptic number.

97531071 is a deficient number, since it is larger than the sum of its proper divisors (46739649).

97531071 is a wasteful number, since it uses less digits than its factorization.

97531071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50166.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 97531071 is about 9875.7820449826. The cubic root of 97531071 is about 460.3070901560.

The spelling of 97531071 in words is "ninety-seven million, five hundred thirty-one thousand, seventy-one".