26369869 has 2 divisors, whose sum is σ = 26369870. Its totient is φ = 26369868.

The previous prime is 26369857. The next prime is 26369911. The reversal of 26369869 is 96896362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24304900 + 2064969 = 4930^2 + 1437^2 .

It is a cyclic number.

It is not a de Polignac number, because 26369869 - 2¹⁹ = 25845581 is a prime.

It is a super-2 number, since 2×26369869² = 1390739982154322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26369069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13184934 + 13184935.

It is an arithmetic number, because the mean of its divisors is an integer number (13184935).

Almost surely, 2^26369869 is an apocalyptic number.

It is an amenable number.

26369869 is a deficient number, since it is larger than the sum of its proper divisors (1).

26369869 is an equidigital number, since it uses as much as digits as its factorization.

26369869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 49.

The square root of 26369869 is about 5135.1600754017. The cubic root of 26369869 is about 297.6477866583.

The spelling of 26369869 in words is "twenty-six million, three hundred sixty-nine thousand, eight hundred sixty-nine".