26972539 has 4 divisors (see below), whose sum is σ = 29424600. Its totient is φ = 24520480.

The previous prime is 26972527. The next prime is 26972563. The reversal of 26972539 is 93527962.

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

It is a cyclic number.

It is not a de Polignac number, because 26972539 - 2¹⁷ = 26841467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26972495 and 26972504.

It is not an unprimeable number, because it can be changed into a prime (26972339) 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, 1226014 + ... + 1226035.

It is an arithmetic number, because the mean of its divisors is an integer number (7356150).

Almost surely, 2^26972539 is an apocalyptic number.

26972539 is a deficient number, since it is larger than the sum of its proper divisors (2452061).

26972539 is a wasteful number, since it uses less digits than its factorization.

26972539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452060.

The product of its digits is 204120, while the sum is 43.

The square root of 26972539 is about 5193.5093145194. The cubic root of 26972539 is about 299.8982580918.

The spelling of 26972539 in words is "twenty-six million, nine hundred seventy-two thousand, five hundred thirty-nine".