87311103 has 32 divisors (see below), whose sum is σ = 130056192. Its totient is φ = 51660000.

The previous prime is 87311089. The next prime is 87311111. The reversal of 87311103 is 30111378.

It is not a de Polignac number, because 87311103 - 2⁹ = 87310591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87311153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347728 + ... + 347978.

It is an arithmetic number, because the mean of its divisors is an integer number (4064256).

Almost surely, 2^87311103 is an apocalyptic number.

87311103 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

87311103 is a deficient number, since it is larger than the sum of its proper divisors (42745089).

87311103 is a wasteful number, since it uses less digits than its factorization.

87311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 87311103 is about 9344.0410422900. The cubic root of 87311103 is about 443.6322994589.

The spelling of 87311103 in words is "eighty-seven million, three hundred eleven thousand, one hundred three".