26830641 has 16 divisors (see below), whose sum is σ = 39873600. Its totient is φ = 15948288.

The previous prime is 26830637. The next prime is 26830681. The reversal of 26830641 is 14603862.

It is not a de Polignac number, because 26830641 - 2² = 26830637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26830599 and 26830608.

It is not an unprimeable number, because it can be changed into a prime (26830621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12876 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (2492100).

Almost surely, 2^26830641 is an apocalyptic number.

It is an amenable number.

26830641 is a deficient number, since it is larger than the sum of its proper divisors (13042959).

26830641 is a wasteful number, since it uses less digits than its factorization.

26830641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27728.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 26830641 is about 5179.8302095725. The cubic root of 26830641 is about 299.3714283566.

The spelling of 26830641 in words is "twenty-six million, eight hundred thirty thousand, six hundred forty-one".