26880013 has 8 divisors (see below), whose sum is σ = 28080000. Its totient is φ = 25698288.

The previous prime is 26880011. The next prime is 26880017. The reversal of 26880013 is 31008862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26880013 - 2¹ = 26880011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26880011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1513 + ... + 7486.

It is an arithmetic number, because the mean of its divisors is an integer number (3510000).

Almost surely, 2^26880013 is an apocalyptic number.

It is an amenable number.

26880013 is a deficient number, since it is larger than the sum of its proper divisors (1199987).

26880013 is a wasteful number, since it uses less digits than its factorization.

26880013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9131.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 26880013 is about 5184.5938124409. The cubic root of 26880013 is about 299.5549437801.

Adding to 26880013 its reverse (31008862), we get a palindrome (57888875).

The spelling of 26880013 in words is "twenty-six million, eight hundred eighty thousand, thirteen".