87804653 has 8 divisors (see below), whose sum is σ = 88880760. Its totient is φ = 86732800.

The previous prime is 87804649. The next prime is 87804659. The reversal of 87804653 is 35640878.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 157609 + 87647044 = 397^2 + 9362^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87804653 - 2² = 87804649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87804653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87804659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61613 + ... + 63021.

It is an arithmetic number, because the mean of its divisors is an integer number (11110095).

Almost surely, 2^87804653 is an apocalyptic number.

It is an amenable number.

87804653 is a deficient number, since it is larger than the sum of its proper divisors (1076107).

87804653 is a wasteful number, since it uses less digits than its factorization.

87804653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 87804653 is about 9370.4137048478. The cubic root of 87804653 is about 444.4666471246.

The spelling of 87804653 in words is "eighty-seven million, eight hundred four thousand, six hundred fifty-three".