26972369 has 4 divisors (see below), whose sum is σ = 27026496. Its totient is φ = 26918244.

The previous prime is 26972339. The next prime is 26972401. The reversal of 26972369 is 96327962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96327962 = 2 ⋅48163981.

It is a cyclic number.

It is not a de Polignac number, because 26972369 - 2¹⁶ = 26906833 is a prime.

It is a super-2 number, since 2×26972369² = 1455017378944322, which contains 22 as substring.

It is a Duffinian number.

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, 26309 + ... + 27314.

It is an arithmetic number, because the mean of its divisors is an integer number (6756624).

Almost surely, 2^26972369 is an apocalyptic number.

It is an amenable number.

26972369 is a deficient number, since it is larger than the sum of its proper divisors (54127).

26972369 is an equidigital number, since it uses as much as digits as its factorization.

26972369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54126.

The product of its digits is 244944, while the sum is 44.

The square root of 26972369 is about 5193.4929479109. The cubic root of 26972369 is about 299.8976280335.

The spelling of 26972369 in words is "twenty-six million, nine hundred seventy-two thousand, three hundred sixty-nine".