26872369 has 2 divisors, whose sum is σ = 26872370. Its totient is φ = 26872368.

The previous prime is 26872367. The next prime is 26872387. The reversal of 26872369 is 96327862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17539344 + 9333025 = 4188^2 + 3055^2 .

It is a cyclic number.

It is not a de Polignac number, because 26872369 - 2¹ = 26872367 is a prime.

It is a super-2 number, since 2×26872369² = 1444248431344322, which contains 22 as substring.

Together with 26872367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26872367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13436184 + 13436185.

It is an arithmetic number, because the mean of its divisors is an integer number (13436185).

Almost surely, 2^26872369 is an apocalyptic number.

It is an amenable number.

26872369 is a deficient number, since it is larger than the sum of its proper divisors (1).

26872369 is an equidigital number, since it uses as much as digits as its factorization.

26872369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 26872369 is about 5183.8565759481. The cubic root of 26872369 is about 299.5265457894.

The spelling of 26872369 in words is "twenty-six million, eight hundred seventy-two thousand, three hundred sixty-nine".