26855487 has 6 divisors (see below), whose sum is σ = 38791272. Its totient is φ = 17903652.

The previous prime is 26855453. The next prime is 26855489. The reversal of 26855487 is 78455862.

26855487 is a `hidden beast` number, since 26 + 85 + 548 + 7 = 666.

It is not a de Polignac number, because 26855487 - 2¹⁶ = 26789951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26855489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1491963 + ... + 1491980.

It is an arithmetic number, because the mean of its divisors is an integer number (6465212).

Almost surely, 2^26855487 is an apocalyptic number.

26855487 is a deficient number, since it is larger than the sum of its proper divisors (11935785).

26855487 is a wasteful number, since it uses less digits than its factorization.

26855487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983949 (or 2983946 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 26855487 is about 5182.2279957563. The cubic root of 26855487 is about 299.4638089013.

It can be divided in two parts, 268 and 55487, that added together give a palindrome (55755).

The spelling of 26855487 in words is "twenty-six million, eight hundred fifty-five thousand, four hundred eighty-seven".