87838263 has 10 divisors (see below), whose sum is σ = 131215304. Its totient is φ = 58558788.

The previous prime is 87838249. The next prime is 87838271. The reversal of 87838263 is 36283878.

It is not a de Polignac number, because 87838263 - 2⁹ = 87837751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87838213) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 542131 + ... + 542292.

Almost surely, 2^87838263 is an apocalyptic number.

87838263 is a deficient number, since it is larger than the sum of its proper divisors (43377041).

87838263 is a wasteful number, since it uses less digits than its factorization.

87838263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084435 (or 1084426 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 87838263 is about 9372.2069439380. The cubic root of 87838263 is about 444.5233510989.

The spelling of 87838263 in words is "eighty-seven million, eight hundred thirty-eight thousand, two hundred sixty-three".