8026649 has 4 divisors (see below), whose sum is σ = 8303460. Its totient is φ = 7749840.

The previous prime is 8026639. The next prime is 8026661. The reversal of 8026649 is 9466208.

8026649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6538249 + 1488400 = 2557^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 8026649 - 2⁴ = 8026633 is a prime.

It is a d-powerful number, because it can be written as 8⁷ + 0 + 2¹³ + 6⁶ + 6⁸ + 4¹¹ + 9³ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8026619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138362 + ... + 138419.

It is an arithmetic number, because the mean of its divisors is an integer number (2075865).

Almost surely, 2^8026649 is an apocalyptic number.

It is an amenable number.

8026649 is a deficient number, since it is larger than the sum of its proper divisors (276811).

8026649 is a wasteful number, since it uses less digits than its factorization.

8026649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276810.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 8026649 is about 2833.1341302522. The cubic root of 8026649 is about 200.2218288688.

The spelling of 8026649 in words is "eight million, twenty-six thousand, six hundred forty-nine".