26889345 has 24 divisors (see below), whose sum is σ = 53267136. Its totient is φ = 12292128.

The previous prime is 26889337. The next prime is 26889347. The reversal of 26889345 is 54398862.

It is not a de Polignac number, because 26889345 - 2³ = 26889337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 26889345.

It is not an unprimeable number, because it can be changed into a prime (26889347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42367 + ... + 42996.

It is an arithmetic number, because the mean of its divisors is an integer number (2219464).

Almost surely, 2^26889345 is an apocalyptic number.

It is an amenable number.

26889345 is a deficient number, since it is larger than the sum of its proper divisors (26377791).

26889345 is a wasteful number, since it uses less digits than its factorization.

26889345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85381 (or 85378 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 26889345 is about 5185.4937084139. The cubic root of 26889345 is about 299.5896055105.

The spelling of 26889345 in words is "twenty-six million, eight hundred eighty-nine thousand, three hundred forty-five".