87521359 has 2 divisors, whose sum is σ = 87521360. Its totient is φ = 87521358.

The previous prime is 87521351. The next prime is 87521393. The reversal of 87521359 is 95312578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87521359 - 2³ = 87521351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87521351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43760679 + 43760680.

It is an arithmetic number, because the mean of its divisors is an integer number (43760680).

Almost surely, 2^87521359 is an apocalyptic number.

87521359 is a deficient number, since it is larger than the sum of its proper divisors (1).

87521359 is an equidigital number, since it uses as much as digits as its factorization.

87521359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 87521359 is about 9355.2850838443. The cubic root of 87521359 is about 443.9881212497.

The spelling of 87521359 in words is "eighty-seven million, five hundred twenty-one thousand, three hundred fifty-nine".