26485987 has 4 divisors (see below), whose sum is σ = 28893816. Its totient is φ = 24078160.

The previous prime is 26485951. The next prime is 26485993. The reversal of 26485987 is 78958462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26485987 - 2¹¹ = 26483939 is a prime.

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 26485987.

It is not an unprimeable number, because it can be changed into a prime (26485387) 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, 1203898 + ... + 1203919.

It is an arithmetic number, because the mean of its divisors is an integer number (7223454).

Almost surely, 2^26485987 is an apocalyptic number.

26485987 is a deficient number, since it is larger than the sum of its proper divisors (2407829).

26485987 is a wasteful number, since it uses less digits than its factorization.

26485987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407828.

The product of its digits is 967680, while the sum is 49.

The square root of 26485987 is about 5146.4538276370. The cubic root of 26485987 is about 298.0840378273.

It can be divided in two parts, 26485 and 987, that added together give a palindrome (27472).

The spelling of 26485987 in words is "twenty-six million, four hundred eighty-five thousand, nine hundred eighty-seven".