97166497 has 4 divisors (see below), whose sum is σ = 97247556. Its totient is φ = 97085440.

The previous prime is 97166491. The next prime is 97166521. The reversal of 97166497 is 79466179.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50708641 + 46457856 = 7121^2 + 6816^2 .

It is a cyclic number.

It is not a de Polignac number, because 97166497 - 2¹¹ = 97164449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97166497.

It is not an unprimeable number, because it can be changed into a prime (97166491) 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, 38704 + ... + 41137.

It is an arithmetic number, because the mean of its divisors is an integer number (24311889).

Almost surely, 2^97166497 is an apocalyptic number.

It is an amenable number.

97166497 is a deficient number, since it is larger than the sum of its proper divisors (81059).

97166497 is a wasteful number, since it uses less digits than its factorization.

97166497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81058.

The product of its digits is 571536, while the sum is 49.

The square root of 97166497 is about 9857.3067822808. The cubic root of 97166497 is about 459.7328268945.

The spelling of 97166497 in words is "ninety-seven million, one hundred sixty-six thousand, four hundred ninety-seven".