87523339 has 4 divisors (see below), whose sum is σ = 88060456. Its totient is φ = 86986224.

The previous prime is 87523321. The next prime is 87523369. The reversal of 87523339 is 93332578.

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

It is a cyclic number.

It is not a de Polignac number, because 87523339 - 2⁵ = 87523307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87523309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268314 + ... + 268639.

It is an arithmetic number, because the mean of its divisors is an integer number (22015114).

Almost surely, 2^87523339 is an apocalyptic number.

87523339 is a deficient number, since it is larger than the sum of its proper divisors (537117).

87523339 is a wasteful number, since it uses less digits than its factorization.

87523339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537116.

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

The square root of 87523339 is about 9355.3909057826. The cubic root of 87523339 is about 443.9914693462.

The spelling of 87523339 in words is "eighty-seven million, five hundred twenty-three thousand, three hundred thirty-nine".