26939616 has 96 divisors (see below), whose sum is σ = 78236928. Its totient is φ = 8048640.

The previous prime is 26939599. The next prime is 26939617. The reversal of 26939616 is 61693962.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26939617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102301 + ... + 102563.

It is an arithmetic number, because the mean of its divisors is an integer number (814968).

Almost surely, 2^26939616 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 26939616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39118464).

26939616 is an abundant number, since it is smaller than the sum of its proper divisors (51297312).

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

26939616 is a wasteful number, since it uses less digits than its factorization.

26939616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 376 counting only the distinct ones).

The product of its digits is 104976, while the sum is 42.

The square root of 26939616 is about 5190.3387172708. The cubic root of 26939616 is about 299.7761886253.

The spelling of 26939616 in words is "twenty-six million, nine hundred thirty-nine thousand, six hundred sixteen".