26890469 has 4 divisors (see below), whose sum is σ = 27269280. Its totient is φ = 26511660.

The previous prime is 26890463. The next prime is 26890483. The reversal of 26890469 is 96409862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26890469 - 2²⁴ = 10113253 is a prime.

It is a super-3 number, since 3×26890469³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189299 + ... + 189440.

It is an arithmetic number, because the mean of its divisors is an integer number (6817320).

Almost surely, 2^26890469 is an apocalyptic number.

It is an amenable number.

26890469 is a deficient number, since it is larger than the sum of its proper divisors (378811).

26890469 is an equidigital number, since it uses as much as digits as its factorization.

26890469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378810.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 26890469 is about 5185.6020865469. The cubic root of 26890469 is about 299.5937798285.

The spelling of 26890469 in words is "twenty-six million, eight hundred ninety thousand, four hundred sixty-nine".