26438969 has 4 divisors (see below), whose sum is σ = 26455296. Its totient is φ = 26422644.

The previous prime is 26438953. The next prime is 26438977. The reversal of 26438969 is 96983462.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96983462 = 2 ⋅48491731.

It is a cyclic number.

It is not a de Polignac number, because 26438969 - 2⁴ = 26438953 is a prime.

It is a super-2 number, since 2×26438969² = 1398038163565922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26438369) 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, 5429 + ... + 9074.

It is an arithmetic number, because the mean of its divisors is an integer number (6613824).

Almost surely, 2^26438969 is an apocalyptic number.

It is an amenable number.

26438969 is a deficient number, since it is larger than the sum of its proper divisors (16327).

26438969 is a wasteful number, since it uses less digits than its factorization.

26438969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16326.

The product of its digits is 559872, while the sum is 47.

The square root of 26438969 is about 5141.8837987648. The cubic root of 26438969 is about 297.9075468044.

The spelling of 26438969 in words is "twenty-six million, four hundred thirty-eight thousand, nine hundred sixty-nine".