26087863 has 4 divisors (see below), whose sum is σ = 26110000. Its totient is φ = 26065728.

The previous prime is 26087861. The next prime is 26087869. The reversal of 26087863 is 36878062.

It is a happy number.

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 26087863 - 2¹ = 26087861 is a prime.

It is a super-3 number, since 3×26087863³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26087861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9195 + ... + 11692.

It is an arithmetic number, because the mean of its divisors is an integer number (6527500).

Almost surely, 2^26087863 is an apocalyptic number.

26087863 is a deficient number, since it is larger than the sum of its proper divisors (22137).

26087863 is a wasteful number, since it uses less digits than its factorization.

26087863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22136.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 26087863 is about 5107.6279230187. The cubic root of 26087863 is about 296.5829416275.

The spelling of 26087863 in words is "twenty-six million, eighty-seven thousand, eight hundred sixty-three".