97884765 has 36 divisors (see below), whose sum is σ = 186503772. Its totient is φ = 47456640.

The previous prime is 97884739. The next prime is 97884791. The reversal of 97884765 is 56748879.

97884765 is a `hidden beast` number, since 97 + 88 + 476 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (97884739) and next prime (97884791).

It can be written as a sum of positive squares in 2 ways, for example, as 42263001 + 55621764 = 6501^2 + 7458^2 .

It is not a de Polignac number, because 97884765 - 2¹⁰ = 97883741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3544 + ... + 14433.

Almost surely, 2^97884765 is an apocalyptic number.

It is an amenable number.

97884765 is a deficient number, since it is larger than the sum of its proper divisors (88619007).

97884765 is a wasteful number, since it uses less digits than its factorization.

97884765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18010 (or 17996 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 97884765 is about 9893.6729782220. The cubic root of 97884765 is about 460.8628496133.

The spelling of 97884765 in words is "ninety-seven million, eight hundred eighty-four thousand, seven hundred sixty-five".