26396129 has 4 divisors (see below), whose sum is σ = 26406576. Its totient is φ = 26385684.

The previous prime is 26396099. The next prime is 26396131. The reversal of 26396129 is 92169362.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 26396129 - 2¹² = 26392033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26396092 and 26396101.

It is not an unprimeable number, because it can be changed into a prime (26396179) 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, 1202 + ... + 7364.

It is an arithmetic number, because the mean of its divisors is an integer number (6601644).

Almost surely, 2^26396129 is an apocalyptic number.

It is an amenable number.

26396129 is a deficient number, since it is larger than the sum of its proper divisors (10447).

26396129 is an equidigital number, since it uses as much as digits as its factorization.

26396129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10446.

The product of its digits is 34992, while the sum is 38.

The square root of 26396129 is about 5137.7163214798. The cubic root of 26396129 is about 297.7465564291.

The spelling of 26396129 in words is "twenty-six million, three hundred ninety-six thousand, one hundred twenty-nine".