87659593 has 4 divisors (see below), whose sum is σ = 100182400. Its totient is φ = 75136788.

The previous prime is 87659581. The next prime is 87659609. The reversal of 87659593 is 39595678.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39595678 = 2 ⋅19797839.

It is a cyclic number.

It is not a de Polignac number, because 87659593 - 2¹³ = 87651401 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 87659593.

It is not an unprimeable number, because it can be changed into a prime (87659503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6261393 + ... + 6261406.

It is an arithmetic number, because the mean of its divisors is an integer number (25045600).

Almost surely, 2^87659593 is an apocalyptic number.

It is an amenable number.

87659593 is a deficient number, since it is larger than the sum of its proper divisors (12522807).

87659593 is a wasteful number, since it uses less digits than its factorization.

87659593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12522806.

The product of its digits is 2041200, while the sum is 52.

The square root of 87659593 is about 9362.6701853691. The cubic root of 87659593 is about 444.2217479165.

The spelling of 87659593 in words is "eighty-seven million, six hundred fifty-nine thousand, five hundred ninety-three".