26988793 has 6 divisors (see below), whose sum is σ = 29224734. Its totient is φ = 24912576.

The previous prime is 26988791. The next prime is 26988823. The reversal of 26988793 is 39788962.

It can be written as a sum of positive squares in 3 ways, for example, as 3485689 + 23503104 = 1867^2 + 4848^2 .

It is not a de Polignac number, because 26988793 - 2¹ = 26988791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26988793.

It is not an unprimeable number, because it can be changed into a prime (26988791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79680 + ... + 80017.

It is an arithmetic number, because the mean of its divisors is an integer number (4870789).

Almost surely, 2^26988793 is an apocalyptic number.

It is an amenable number.

26988793 is a deficient number, since it is larger than the sum of its proper divisors (2235941).

26988793 is a wasteful number, since it uses less digits than its factorization.

26988793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159723 (or 159710 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The square root of 26988793 is about 5195.0739167022. The cubic root of 26988793 is about 299.9584868484.

The spelling of 26988793 in words is "twenty-six million, nine hundred eighty-eight thousand, seven hundred ninety-three".