87073503 has 16 divisors (see below), whose sum is σ = 126901632. Its totient is φ = 52668000.

The previous prime is 87073499. The next prime is 87073529. The reversal of 87073503 is 30537078.

It is not a de Polignac number, because 87073503 - 2² = 87073499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87073003) 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, 16533 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (7931352).

Almost surely, 2^87073503 is an apocalyptic number.

87073503 is a deficient number, since it is larger than the sum of its proper divisors (39828129).

87073503 is a wasteful number, since it uses less digits than its factorization.

87073503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 87073503 is about 9331.3183955966. The cubic root of 87073503 is about 443.2295145118.

The spelling of 87073503 in words is "eighty-seven million, seventy-three thousand, five hundred three".