26890963 has 8 divisors (see below), whose sum is σ = 29378160. Its totient is φ = 24410880.

The previous prime is 26890951. The next prime is 26890967. The reversal of 26890963 is 36909862.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26890963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26890967) 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 7 ways as a sum of consecutive naturals, for example, 9003 + ... + 11611.

It is an arithmetic number, because the mean of its divisors is an integer number (3672270).

Almost surely, 2^26890963 is an apocalyptic number.

26890963 is a deficient number, since it is larger than the sum of its proper divisors (2487197).

26890963 is a wasteful number, since it uses less digits than its factorization.

26890963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 26890963 is about 5185.6497182128. The cubic root of 26890963 is about 299.5956144118.

The spelling of 26890963 in words is "twenty-six million, eight hundred ninety thousand, nine hundred sixty-three".