87084593 has 4 divisors (see below), whose sum is σ = 90087540. Its totient is φ = 84081648.

The previous prime is 87084583. The next prime is 87084617. The reversal of 87084593 is 39548078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35129329 + 51955264 = 5927^2 + 7208^2 .

It is a cyclic number.

It is not a de Polignac number, because 87084593 - 2⁴ = 87084577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87084583) 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, 1501430 + ... + 1501487.

It is an arithmetic number, because the mean of its divisors is an integer number (22521885).

Almost surely, 2^87084593 is an apocalyptic number.

It is an amenable number.

87084593 is a deficient number, since it is larger than the sum of its proper divisors (3002947).

87084593 is a wasteful number, since it uses less digits than its factorization.

87084593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002946.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 87084593 is about 9331.9126121069. The cubic root of 87084593 is about 443.2483308240.

The spelling of 87084593 in words is "eighty-seven million, eighty-four thousand, five hundred ninety-three".