26489969 has 4 divisors (see below), whose sum is σ = 28898160. Its totient is φ = 24081780.

The previous prime is 26489959. The next prime is 26489989. The reversal of 26489969 is 96998462.

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 26489969 - 2²⁴ = 9712753 is a prime.

It is a super-2 number, since 2×26489969² = 1403436915241922, which contains 22 as substring.

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 26489969.

It is not an unprimeable number, because it can be changed into a prime (26489929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204079 + ... + 1204100.

It is an arithmetic number, because the mean of its divisors is an integer number (7224540).

Almost surely, 2^26489969 is an apocalyptic number.

It is an amenable number.

26489969 is a deficient number, since it is larger than the sum of its proper divisors (2408191).

26489969 is a wasteful number, since it uses less digits than its factorization.

26489969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408190.

The product of its digits is 1679616, while the sum is 53.

The square root of 26489969 is about 5146.8406814278. The cubic root of 26489969 is about 298.0989754264.

The spelling of 26489969 in words is "twenty-six million, four hundred eighty-nine thousand, nine hundred sixty-nine".