87901603 has 4 divisors (see below), whose sum is σ = 90277360. Its totient is φ = 85525848.

The previous prime is 87901601. The next prime is 87901637. The reversal of 87901603 is 30610978.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87901603 - 2¹ = 87901601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87901601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187823 + ... + 1187896.

It is an arithmetic number, because the mean of its divisors is an integer number (22569340).

Almost surely, 2^87901603 is an apocalyptic number.

87901603 is a deficient number, since it is larger than the sum of its proper divisors (2375757).

87901603 is a wasteful number, since it uses less digits than its factorization.

87901603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375756.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 87901603 is about 9375.5854750517. The cubic root of 87901603 is about 444.6301737334.

The spelling of 87901603 in words is "eighty-seven million, nine hundred one thousand, six hundred three".