87112403 has 20 divisors (see below), whose sum is σ = 106489200. Its totient is φ = 69803904.

The previous prime is 87112373. The next prime is 87112439. The reversal of 87112403 is 30421178.

It is not a de Polignac number, because 87112403 - 2¹⁰ = 87111379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87112483) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 584573 + ... + 584721.

It is an arithmetic number, because the mean of its divisors is an integer number (5324460).

Almost surely, 2^87112403 is an apocalyptic number.

87112403 is a deficient number, since it is larger than the sum of its proper divisors (19376797).

87112403 is an frugal number, since it uses more digits than its factorization.

87112403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 87112403 is about 9333.4025414101. The cubic root of 87112403 is about 443.2955087986.

The spelling of 87112403 in words is "eighty-seven million, one hundred twelve thousand, four hundred three".