87795563 has 8 divisors (see below), whose sum is σ = 89670240. Its totient is φ = 85940800.

The previous prime is 87795559. The next prime is 87795571. The reversal of 87795563 is 36559778.

It is a happy number.

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 87795563 - 2² = 87795559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87795583) 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, 4106 + ... + 13872.

It is an arithmetic number, because the mean of its divisors is an integer number (11208780).

Almost surely, 2^87795563 is an apocalyptic number.

87795563 is a deficient number, since it is larger than the sum of its proper divisors (1874677).

87795563 is a wasteful number, since it uses less digits than its factorization.

87795563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9957.

The product of its digits is 1587600, while the sum is 50.

The square root of 87795563 is about 9369.9286550112. The cubic root of 87795563 is about 444.4513087528.

The spelling of 87795563 in words is "eighty-seven million, seven hundred ninety-five thousand, five hundred sixty-three".