26978856 has 16 divisors (see below), whose sum is σ = 67447200. Its totient is φ = 8992944.

The previous prime is 26978851. The next prime is 26978857. The reversal of 26978856 is 65887962.

It is a junction number, because it is equal to n+sod(n) for n = 26978799 and 26978808.

It is not an unprimeable number, because it can be changed into a prime (26978851) 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, 562036 + ... + 562083.

It is an arithmetic number, because the mean of its divisors is an integer number (4215450).

Almost surely, 2^26978856 is an apocalyptic number.

It is an amenable number.

26978856 is an abundant number, since it is smaller than the sum of its proper divisors (40468344).

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

26978856 is a wasteful number, since it uses less digits than its factorization.

26978856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124128 (or 1124124 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 26978856 is about 5194.1174418760. The cubic root of 26978856 is about 299.9216684379.

The spelling of 26978856 in words is "twenty-six million, nine hundred seventy-eight thousand, eight hundred fifty-six".