26999993 has 8 divisors (see below), whose sum is σ = 27548160. Its totient is φ = 26454960.

The previous prime is 26999981. The next prime is 27000011. The reversal of 26999993 is 39999962.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26999963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24296 + ... + 25382.

It is an arithmetic number, because the mean of its divisors is an integer number (3443520).

Almost surely, 2^26999993 is an apocalyptic number.

It is an amenable number.

26999993 is a deficient number, since it is larger than the sum of its proper divisors (548167).

26999993 is a wasteful number, since it uses less digits than its factorization.

26999993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567.

The product of its digits is 2125764, while the sum is 56.

The square root of 26999993 is about 5196.1517491313. The cubic root of 26999993 is about 299.9999740741. Note that the first 4 decimals are identical.

It can be divided in two parts, 2 and 6999993, that multiplied together give a triangular number (13999986 = T₅₂₉₁).

The spelling of 26999993 in words is "twenty-six million, nine hundred ninety-nine thousand, nine hundred ninety-three".