87539323 has 2 divisors, whose sum is σ = 87539324. Its totient is φ = 87539322.

The previous prime is 87539297. The next prime is 87539329. The reversal of 87539323 is 32393578.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87539323 - 2²⁵ = 53984891 is a prime.

It is not a weakly prime, because it can be changed into another prime (87539329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43769661 + 43769662.

It is an arithmetic number, because the mean of its divisors is an integer number (43769662).

Almost surely, 2^87539323 is an apocalyptic number.

87539323 is a deficient number, since it is larger than the sum of its proper divisors (1).

87539323 is an equidigital number, since it uses as much as digits as its factorization.

87539323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 87539323 is about 9356.2451335993. The cubic root of 87539323 is about 444.0184957666.

The spelling of 87539323 in words is "eighty-seven million, five hundred thirty-nine thousand, three hundred twenty-three".