26891955 has 12 divisors (see below), whose sum is σ = 46612800. Its totient is φ = 14342352.

The previous prime is 26891947. The next prime is 26891983. The reversal of 26891955 is 55919862.

It is not a de Polignac number, because 26891955 - 2³ = 26891947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 597599 = 26891955 / (2 + 6 + 8 + 9 + 1 + 9 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 26891955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298755 + ... + 298844.

It is an arithmetic number, because the mean of its divisors is an integer number (3884400).

Almost surely, 2^26891955 is an apocalyptic number.

26891955 is a deficient number, since it is larger than the sum of its proper divisors (19720845).

26891955 is a wasteful number, since it uses less digits than its factorization.

26891955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597610 (or 597607 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 26891955 is about 5185.7453659045. The cubic root of 26891955 is about 299.5992983656.

The spelling of 26891955 in words is "twenty-six million, eight hundred ninety-one thousand, nine hundred fifty-five".