26870089 has 4 divisors (see below), whose sum is σ = 26956800. Its totient is φ = 26783380.

The previous prime is 26870083. The next prime is 26870093. The reversal of 26870089 is 98007862.

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: 98007862 = 2 ⋅49003931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26870089 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26870083) 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, 42889 + ... + 43510.

It is an arithmetic number, because the mean of its divisors is an integer number (6739200).

Almost surely, 2^26870089 is an apocalyptic number.

It is an amenable number.

26870089 is a deficient number, since it is larger than the sum of its proper divisors (86711).

26870089 is an equidigital number, since it uses as much as digits as its factorization.

26870089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86710.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 26870089 is about 5183.6366577915. The cubic root of 26870089 is about 299.5180743884.

The spelling of 26870089 in words is "twenty-six million, eight hundred seventy thousand, eighty-nine".