26082649 has 4 divisors (see below), whose sum is σ = 27455440. Its totient is φ = 24709860.

The previous prime is 26082619. The next prime is 26082653. The reversal of 26082649 is 94628062.

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: 94628062 = 2 ⋅47314031.

It is a cyclic number.

It is not a de Polignac number, because 26082649 - 2¹⁷ = 25951577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26082619) 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, 686367 + ... + 686404.

It is an arithmetic number, because the mean of its divisors is an integer number (6863860).

Almost surely, 2^26082649 is an apocalyptic number.

It is an amenable number.

26082649 is a deficient number, since it is larger than the sum of its proper divisors (1372791).

26082649 is a wasteful number, since it uses less digits than its factorization.

26082649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372790.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 26082649 is about 5107.1174844525. The cubic root of 26082649 is about 296.5631816534.

The spelling of 26082649 in words is "twenty-six million, eighty-two thousand, six hundred forty-nine".