87100503 has 32 divisors (see below), whose sum is σ = 147939840. Its totient is φ = 44375040.

The previous prime is 87100501. The next prime is 87100511. The reversal of 87100503 is 30500178.

It is not a de Polignac number, because 87100503 - 2¹ = 87100501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87100501) 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, 363 + ... + 13203.

It is an arithmetic number, because the mean of its divisors is an integer number (4623120).

Almost surely, 2^87100503 is an apocalyptic number.

87100503 is a deficient number, since it is larger than the sum of its proper divisors (60839337).

87100503 is a wasteful number, since it uses less digits than its factorization.

87100503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12887.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 87100503 is about 9332.7650243644. The cubic root of 87100503 is about 443.2753224011.

The spelling of 87100503 in words is "eighty-seven million, one hundred thousand, five hundred three".