26656949 has 4 divisors (see below), whose sum is σ = 29080320. Its totient is φ = 24233580.

The previous prime is 26656937. The next prime is 26656957. The reversal of 26656949 is 94965662.

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.

It is a cyclic number.

It is not a de Polignac number, because 26656949 - 2¹² = 26652853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26656979) 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, 1211669 + ... + 1211690.

It is an arithmetic number, because the mean of its divisors is an integer number (7270080).

Almost surely, 2^26656949 is an apocalyptic number.

It is an amenable number.

26656949 is a deficient number, since it is larger than the sum of its proper divisors (2423371).

26656949 is a wasteful number, since it uses less digits than its factorization.

26656949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423370.

The product of its digits is 699840, while the sum is 47.

The square root of 26656949 is about 5163.0368001787. The cubic root of 26656949 is about 298.7240213634.

The spelling of 26656949 in words is "twenty-six million, six hundred fifty-six thousand, nine hundred forty-nine".