26977968 has 80 divisors (see below), whose sum is σ = 78075360. Its totient is φ = 8918784.

The previous prime is 26977961. The next prime is 26977969. The reversal of 26977968 is 86977962.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (26977961) 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, 84946 + ... + 85262.

It is an arithmetic number, because the mean of its divisors is an integer number (975942).

Almost surely, 2^26977968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26977968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39037680).

26977968 is an abundant number, since it is smaller than the sum of its proper divisors (51097392).

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

26977968 is a wasteful number, since it uses less digits than its factorization.

26977968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 519 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 26977968 is about 5194.0319598555. The cubic root of 26977968 is about 299.9183777947.

The spelling of 26977968 in words is "twenty-six million, nine hundred seventy-seven thousand, nine hundred sixty-eight".