26864087 has 4 divisors (see below), whose sum is σ = 26906256. Its totient is φ = 26821920.

The previous prime is 26864077. The next prime is 26864093. The reversal of 26864087 is 78046862.

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 26864087 - 2¹² = 26859991 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 (26864017) 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, 20114 + ... + 21407.

It is an arithmetic number, because the mean of its divisors is an integer number (6726564).

Almost surely, 2^26864087 is an apocalyptic number.

26864087 is a deficient number, since it is larger than the sum of its proper divisors (42169).

26864087 is an equidigital number, since it uses as much as digits as its factorization.

26864087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42168.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 26864087 is about 5183.0576882763. The cubic root of 26864087 is about 299.4957715054.

The spelling of 26864087 in words is "twenty-six million, eight hundred sixty-four thousand, eighty-seven".