97665247 has 8 divisors (see below), whose sum is σ = 98804160. Its totient is φ = 96533280.

The previous prime is 97665241. The next prime is 97665259. The reversal of 97665247 is 74256679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97665247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97665197 and 97665206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97665241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29754 + ... + 32872.

It is an arithmetic number, because the mean of its divisors is an integer number (12350520).

Almost surely, 2^97665247 is an apocalyptic number.

97665247 is a deficient number, since it is larger than the sum of its proper divisors (1138913).

97665247 is a wasteful number, since it uses less digits than its factorization.

97665247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473.

The product of its digits is 635040, while the sum is 46.

The square root of 97665247 is about 9882.5728937357. The cubic root of 97665247 is about 460.5180788612.

The spelling of 97665247 in words is "ninety-seven million, six hundred sixty-five thousand, two hundred forty-seven".