26830973 has 4 divisors (see below), whose sum is σ = 28894908. Its totient is φ = 24767040.

The previous prime is 26830967. The next prime is 26831023. The reversal of 26830973 is 37903862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10004569 + 16826404 = 3163^2 + 4102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26830973 is a prime.

It is a super-2 number, since 2×26830973² = 1439802224253458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26830943) 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, 1031948 + ... + 1031973.

It is an arithmetic number, because the mean of its divisors is an integer number (7223727).

Almost surely, 2^26830973 is an apocalyptic number.

It is an amenable number.

26830973 is a deficient number, since it is larger than the sum of its proper divisors (2063935).

26830973 is a wasteful number, since it uses less digits than its factorization.

26830973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063934.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 26830973 is about 5179.8622568559. The cubic root of 26830973 is about 299.3726631501.

The spelling of 26830973 in words is "twenty-six million, eight hundred thirty thousand, nine hundred seventy-three".