26847870 has 64 divisors (see below), whose sum is σ = 74165760. Its totient is φ = 6092928.

The previous prime is 26847859. The next prime is 26847871. The reversal of 26847870 is 7874862.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26847871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35961 + ... + 36699.

It is an arithmetic number, because the mean of its divisors is an integer number (1158840).

Almost surely, 2^26847870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26847870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37082880).

26847870 is an abundant number, since it is smaller than the sum of its proper divisors (47317890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26847870 is a wasteful number, since it uses less digits than its factorization.

26847870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 26847870 is about 5181.4930280760. The cubic root of 26847870 is about 299.4354939984.

The spelling of 26847870 in words is "twenty-six million, eight hundred forty-seven thousand, eight hundred seventy".