87564093 has 8 divisors (see below), whose sum is σ = 123619968. Its totient is φ = 54942144.

The previous prime is 87564091. The next prime is 87564101. The reversal of 87564093 is 39046578.

It is a happy number.

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

It is not a de Polignac number, because 87564093 - 2¹ = 87564091 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87564091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858421 + ... + 858522.

It is an arithmetic number, because the mean of its divisors is an integer number (15452496).

Almost surely, 2^87564093 is an apocalyptic number.

It is an amenable number.

87564093 is a deficient number, since it is larger than the sum of its proper divisors (36055875).

87564093 is a wasteful number, since it uses less digits than its factorization.

87564093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716963.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 87564093 is about 9357.5687547568. The cubic root of 87564093 is about 444.0603714272.

The spelling of 87564093 in words is "eighty-seven million, five hundred sixty-four thousand, ninety-three".