87826863 has 8 divisors (see below), whose sum is σ = 120267568. Its totient is φ = 56968704.

The previous prime is 87826853. The next prime is 87826889. The reversal of 87826863 is 36862878.

It is a happy number.

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

It is not a de Polignac number, because 87826863 - 2⁶ = 87826799 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 (87826853) 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, 395506 + ... + 395727.

It is an arithmetic number, because the mean of its divisors is an integer number (15033446).

Almost surely, 2^87826863 is an apocalyptic number.

87826863 is a deficient number, since it is larger than the sum of its proper divisors (32440705).

87826863 is a wasteful number, since it uses less digits than its factorization.

87826863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791273.

The product of its digits is 774144, while the sum is 48.

The square root of 87826863 is about 9371.5987430107. The cubic root of 87826863 is about 444.5041195959.

The spelling of 87826863 in words is "eighty-seven million, eight hundred twenty-six thousand, eight hundred sixty-three".