26990965 has 8 divisors (see below), whose sum is σ = 32493240. Its totient is φ = 21523392.

The previous prime is 26990959. The next prime is 26990989. The reversal of 26990965 is 56909962.

It can be written as a sum of positive squares in 4 ways, for example, as 1164241 + 25826724 = 1079^2 + 5082^2 .

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 26990965 - 2⁵ = 26990933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6930 + ... + 10099.

It is an arithmetic number, because the mean of its divisors is an integer number (4061655).

Almost surely, 2^26990965 is an apocalyptic number.

It is an amenable number.

26990965 is a deficient number, since it is larger than the sum of its proper divisors (5502275).

26990965 is a wasteful number, since it uses less digits than its factorization.

26990965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17351.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 26990965 is about 5195.2829566829. The cubic root of 26990965 is about 299.9665333038.

The spelling of 26990965 in words is "twenty-six million, nine hundred ninety thousand, nine hundred sixty-five".