87989803 has 8 divisors (see below), whose sum is σ = 97341696. Its totient is φ = 78863400.

The previous prime is 87989723. The next prime is 87989809. The reversal of 87989803 is 30898978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-87989803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87989809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55551 + ... + 57112.

It is an arithmetic number, because the mean of its divisors is an integer number (12167712).

Almost surely, 2^87989803 is an apocalyptic number.

87989803 is a deficient number, since it is larger than the sum of its proper divisors (9351893).

87989803 is a wasteful number, since it uses less digits than its factorization.

87989803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112745.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 87989803 is about 9380.2880019752. The cubic root of 87989803 is about 444.7788372040.

The spelling of 87989803 in words is "eighty-seven million, nine hundred eighty-nine thousand, eight hundred three".