26879620 has 24 divisors (see below), whose sum is σ = 56559384. Its totient is φ = 10730496.

The previous prime is 26879609. The next prime is 26879627. The reversal of 26879620 is 2697862.

It can be written as a sum of positive squares in 4 ways, for example, as 171396 + 26708224 = 414^2 + 5168^2 .

It is not an unprimeable number, because it can be changed into a prime (26879627) 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, 12462 + ... + 14458.

It is an arithmetic number, because the mean of its divisors is an integer number (2356641).

Almost surely, 2^26879620 is an apocalyptic number.

26879620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26879620 is an abundant number, since it is smaller than the sum of its proper divisors (29679764).

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

26879620 is a wasteful number, since it uses less digits than its factorization.

26879620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679 (or 2677 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 26879620 is about 5184.5559115512. Note that the first 3 decimals coincide. The cubic root of 26879620 is about 299.5534838891.

The spelling of 26879620 in words is "twenty-six million, eight hundred seventy-nine thousand, six hundred twenty".