26890646 has 8 divisors (see below), whose sum is σ = 40593360. Its totient is φ = 13359528.

The previous prime is 26890639. The next prime is 26890649. The reversal of 26890646 is 64609862.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42506 + ... + 43133.

It is an arithmetic number, because the mean of its divisors is an integer number (5074170).

Almost surely, 2^26890646 is an apocalyptic number.

26890646 is a deficient number, since it is larger than the sum of its proper divisors (13702714).

26890646 is a wasteful number, since it uses less digits than its factorization.

26890646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85798.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 26890646 is about 5185.6191530038. The cubic root of 26890646 is about 299.5944371615.

The spelling of 26890646 in words is "twenty-six million, eight hundred ninety thousand, six hundred forty-six".