26330987 has 4 divisors (see below), whose sum is σ = 26355840. Its totient is φ = 26306136.

The previous prime is 26330963. The next prime is 26331001. The reversal of 26330987 is 78903362.

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 26330987 - 2¹⁸ = 26068843 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 26330987.

It is not an unprimeable number, because it can be changed into a prime (26330957) 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, 10763 + ... + 12980.

It is an arithmetic number, because the mean of its divisors is an integer number (6588960).

Almost surely, 2^26330987 is an apocalyptic number.

26330987 is a deficient number, since it is larger than the sum of its proper divisors (24853).

26330987 is a wasteful number, since it uses less digits than its factorization.

26330987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24852.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 26330987 is about 5131.3728182622. The cubic root of 26330987 is about 297.5014222091.

The spelling of 26330987 in words is "twenty-six million, three hundred thirty thousand, nine hundred eighty-seven".