26990 has 8 divisors (see below), whose sum is σ = 48600. Its totient is φ = 10792.

The previous prime is 26987. The next prime is 26993. The reversal of 26990 is 9962.

It is an interprime number because it is at equal distance from previous prime (26987) and next prime (26993).

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 (26993) 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, 1340 + ... + 1359.

It is an arithmetic number, because the mean of its divisors is an integer number (6075).

2²⁶⁹⁹⁰ is an apocalyptic number.

26990 is a deficient number, since it is larger than the sum of its proper divisors (21610).

26990 is a wasteful number, since it uses less digits than its factorization.

26990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 26990 is about 164.2863354026. The cubic root of 26990 is about 29.9962958390.

The spelling of 26990 in words is "twenty-six thousand, nine hundred ninety".