87180903 has 6 divisors (see below), whose sum is σ = 125927984. Its totient is φ = 58120596.

The previous prime is 87180881. The next prime is 87180941. The reversal of 87180903 is 30908178.

It is not a de Polignac number, because 87180903 - 2⁵ = 87180871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87180953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4843375 + ... + 4843392.

Almost surely, 2^87180903 is an apocalyptic number.

87180903 is a deficient number, since it is larger than the sum of its proper divisors (38747081).

87180903 is a wasteful number, since it uses less digits than its factorization.

87180903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686773 (or 9686770 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 87180903 is about 9337.0714359482. The cubic root of 87180903 is about 443.4116720755.

The spelling of 87180903 in words is "eighty-seven million, one hundred eighty thousand, nine hundred three".