87826279 has 4 divisors (see below), whose sum is σ = 89314920. Its totient is φ = 86337640.

The previous prime is 87826273. The next prime is 87826289. The reversal of 87826279 is 97262878.

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 87826279 - 2⁹ = 87825767 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87826273) 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, 744232 + ... + 744349.

It is an arithmetic number, because the mean of its divisors is an integer number (22328730).

Almost surely, 2^87826279 is an apocalyptic number.

87826279 is a deficient number, since it is larger than the sum of its proper divisors (1488641).

87826279 is a wasteful number, since it uses less digits than its factorization.

87826279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488640.

The product of its digits is 677376, while the sum is 49.

The square root of 87826279 is about 9371.5675849881. The cubic root of 87826279 is about 444.5031343583.

It can be divided in two parts, 8 and 7826279, that added together give a palindrome (7826287).

The spelling of 87826279 in words is "eighty-seven million, eight hundred twenty-six thousand, two hundred seventy-nine".