26804993 has 8 divisors (see below), whose sum is σ = 27451008. Its totient is φ = 26162224.

The previous prime is 26804989. The next prime is 26805011. The reversal of 26804993 is 39940862.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 26804993 - 2² = 26804989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26804993.

It is not an unprimeable number, because it can be changed into a prime (26804923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25955 + ... + 26967.

It is an arithmetic number, because the mean of its divisors is an integer number (3431376).

Almost surely, 2^26804993 is an apocalyptic number.

It is an amenable number.

26804993 is a deficient number, since it is larger than the sum of its proper divisors (646015).

26804993 is a wasteful number, since it uses less digits than its factorization.

26804993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 26804993 is about 5177.3538608057. The cubic root of 26804993 is about 299.2760060332.

The spelling of 26804993 in words is "twenty-six million, eight hundred four thousand, nine hundred ninety-three".