26865993 has 48 divisors (see below), whose sum is σ = 45879680. Its totient is φ = 13685760.

The previous prime is 26865991. The next prime is 26866061. The reversal of 26865993 is 39956862.

It is not a de Polignac number, because 26865993 - 2¹ = 26865991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26865991) 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 47 ways as a sum of consecutive naturals, for example, 246423 + ... + 246531.

Almost surely, 2^26865993 is an apocalyptic number.

It is an amenable number.

26865993 is a deficient number, since it is larger than the sum of its proper divisors (19013687).

26865993 is a wasteful number, since it uses less digits than its factorization.

26865993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 227 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 26865993 is about 5183.2415533139. The cubic root of 26865993 is about 299.5028543870.

The spelling of 26865993 in words is "twenty-six million, eight hundred sixty-five thousand, nine hundred ninety-three".