87103523 has 4 divisors (see below), whose sum is σ = 93803808. Its totient is φ = 80403240.

The previous prime is 87103517. The next prime is 87103561. The reversal of 87103523 is 32530178.

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 87103523 - 2¹⁴ = 87087139 is a prime.

It is a Duffinian number.

87103523 is a modest number, since divided by 3523 gives 871 as remainder.

It is not an unprimeable number, because it can be changed into a prime (87103573) 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, 3350123 + ... + 3350148.

It is an arithmetic number, because the mean of its divisors is an integer number (23450952).

Almost surely, 2^87103523 is an apocalyptic number.

87103523 is a deficient number, since it is larger than the sum of its proper divisors (6700285).

87103523 is a wasteful number, since it uses less digits than its factorization.

87103523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700284.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 87103523 is about 9332.9268185280. The cubic root of 87103523 is about 443.2804455097.

The spelling of 87103523 in words is "eighty-seven million, one hundred three thousand, five hundred twenty-three".