26804506 has 4 divisors (see below), whose sum is σ = 40206762. Its totient is φ = 13402252.

The previous prime is 26804501. The next prime is 26804507. The reversal of 26804506 is 60540862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60540862 = 2 ⋅30270431.

It can be written as a sum of positive squares in only one way, i.e., 26615281 + 189225 = 5159^2 + 435^2 .

It is not an unprimeable number, because it can be changed into a prime (26804501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6701125 + ... + 6701128.

Almost surely, 2^26804506 is an apocalyptic number.

26804506 is a deficient number, since it is larger than the sum of its proper divisors (13402256).

26804506 is a wasteful number, since it uses less digits than its factorization.

26804506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13402255.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 26804506 is about 5177.3068288445. The cubic root of 26804506 is about 299.2741935811.

The spelling of 26804506 in words is "twenty-six million, eight hundred four thousand, five hundred six".