26939789 has 8 divisors (see below), whose sum is σ = 27644160. Its totient is φ = 26240976.

The previous prime is 26939779. The next prime is 26939819. The reversal of 26939789 is 98793962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26939789 - 2⁸ = 26939533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26939789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26939749) 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, 9512 + ... + 12014.

It is an arithmetic number, because the mean of its divisors is an integer number (3455520).

Almost surely, 2^26939789 is an apocalyptic number.

It is an amenable number.

26939789 is a deficient number, since it is larger than the sum of its proper divisors (704371).

26939789 is a wasteful number, since it uses less digits than its factorization.

26939789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779.

The product of its digits is 1469664, while the sum is 53.

The square root of 26939789 is about 5190.3553828230. The cubic root of 26939789 is about 299.7768303218.

The spelling of 26939789 in words is "twenty-six million, nine hundred thirty-nine thousand, seven hundred eighty-nine".