87903005 has 16 divisors (see below), whose sum is σ = 112181760. Its totient is φ = 65893632.

The previous prime is 87902999. The next prime is 87903007. The reversal of 87903005 is 50030978.

It is not a de Polignac number, because 87903005 - 2²² = 83708701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87903007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18152 + ... + 22478.

It is an arithmetic number, because the mean of its divisors is an integer number (7011360).

Almost surely, 2^87903005 is an apocalyptic number.

87903005 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87903005 is a deficient number, since it is larger than the sum of its proper divisors (24278755).

87903005 is a wasteful number, since it uses less digits than its factorization.

87903005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 87903005 is about 9375.6602434175. The cubic root of 87903005 is about 444.6325376197.

The spelling of 87903005 in words is "eighty-seven million, nine hundred three thousand, five".