97684745 has 4 divisors (see below), whose sum is σ = 117221700. Its totient is φ = 78147792.

The previous prime is 97684733. The next prime is 97684747. The reversal of 97684745 is 54748679.

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 75707401 + 21977344 = 8701^2 + 4688^2 .

It is a cyclic number.

It is not a de Polignac number, because 97684745 - 2¹⁰ = 97683721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97684693 and 97684702.

It is not an unprimeable number, because it can be changed into a prime (97684747) 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, 9768470 + ... + 9768479.

It is an arithmetic number, because the mean of its divisors is an integer number (29305425).

Almost surely, 2^97684745 is an apocalyptic number.

It is an amenable number.

97684745 is a deficient number, since it is larger than the sum of its proper divisors (19536955).

97684745 is a wasteful number, since it uses less digits than its factorization.

97684745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19536954.

The product of its digits is 1693440, while the sum is 50.

The square root of 97684745 is about 9883.5593285010. The cubic root of 97684745 is about 460.5487229381.

The spelling of 97684745 in words is "ninety-seven million, six hundred eighty-four thousand, seven hundred forty-five".