87488593 has 2 divisors, whose sum is σ = 87488594. Its totient is φ = 87488592.

The previous prime is 87488591. The next prime is 87488641. The reversal of 87488593 is 39588478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46949904 + 40538689 = 6852^2 + 6367^2 .

It is a cyclic number.

It is not a de Polignac number, because 87488593 - 2¹ = 87488591 is a prime.

Together with 87488591, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 87488593.

It is not a weakly prime, because it can be changed into another prime (87488591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43744296 + 43744297.

It is an arithmetic number, because the mean of its divisors is an integer number (43744297).

Almost surely, 2^87488593 is an apocalyptic number.

It is an amenable number.

87488593 is a deficient number, since it is larger than the sum of its proper divisors (1).

87488593 is an equidigital number, since it uses as much as digits as its factorization.

87488593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 52.

The square root of 87488593 is about 9353.5337172643. The cubic root of 87488593 is about 443.9327079930.

The spelling of 87488593 in words is "eighty-seven million, four hundred eighty-eight thousand, five hundred ninety-three".