87097365 has 24 divisors (see below), whose sum is σ = 151402680. Its totient is φ = 46318464.

The previous prime is 87097363. The next prime is 87097379. The reversal of 87097365 is 56379078.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19873764 + 67223601 = 4458^2 + 8199^2 .

It is not a de Polignac number, because 87097365 - 2¹ = 87097363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87097365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87097363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14191 + ... + 19379.

It is an arithmetic number, because the mean of its divisors is an integer number (6308445).

Almost surely, 2^87097365 is an apocalyptic number.

It is an amenable number.

87097365 is a deficient number, since it is larger than the sum of its proper divisors (64305315).

87097365 is a wasteful number, since it uses less digits than its factorization.

87097365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573 (or 5570 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 87097365 is about 9332.5969054706. The cubic root of 87097365 is about 443.2699989927.

The spelling of 87097365 in words is "eighty-seven million, ninety-seven thousand, three hundred sixty-five".