97165489 has 4 divisors (see below), whose sum is σ = 102881124. Its totient is φ = 91449856.

The previous prime is 97165391. The next prime is 97165511. The reversal of 97165489 is 98456179.

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 70694464 + 26471025 = 8408^2 + 5145^2 .

It is a cyclic number.

It is not a de Polignac number, because 97165489 - 2¹¹ = 97163441 is a prime.

It is a super-2 number, since 2×97165489² = 18882264505218242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97160489) 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, 2857792 + ... + 2857825.

It is an arithmetic number, because the mean of its divisors is an integer number (25720281).

Almost surely, 2^97165489 is an apocalyptic number.

It is an amenable number.

97165489 is a deficient number, since it is larger than the sum of its proper divisors (5715635).

97165489 is a wasteful number, since it uses less digits than its factorization.

97165489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5715634.

The product of its digits is 544320, while the sum is 49.

The square root of 97165489 is about 9857.2556525637. The cubic root of 97165489 is about 459.7312371412.

The spelling of 97165489 in words is "ninety-seven million, one hundred sixty-five thousand, four hundred eighty-nine".