26870849 has 4 divisors (see below), whose sum is σ = 27797460. Its totient is φ = 25944240.

The previous prime is 26870839. The next prime is 26870861. The reversal of 26870849 is 94807862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4592449 + 22278400 = 2143^2 + 4720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26870849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26870839) 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, 463262 + ... + 463319.

It is an arithmetic number, because the mean of its divisors is an integer number (6949365).

Almost surely, 2^26870849 is an apocalyptic number.

26870849 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

26870849 is a deficient number, since it is larger than the sum of its proper divisors (926611).

26870849 is an equidigital number, since it uses as much as digits as its factorization.

26870849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926610.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 26870849 is about 5183.7099648804. The cubic root of 26870849 is about 299.5208982420.

It can be divided in two parts, 268 and 70849, that added together give a palindrome (71117).

The spelling of 26870849 in words is "twenty-six million, eight hundred seventy thousand, eight hundred forty-nine".