826749749 has 8 divisors (see below), whose sum is σ = 947878080. Its totient is φ = 706376736.

The previous prime is 826749709. The next prime is 826749751. The reversal of 826749749 is 947947628.

826749749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 826749749 - 2¹⁶ = 826684213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 826749694 and 826749703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826749709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186479 + ... + 190860.

It is an arithmetic number, because the mean of its divisors is an integer number (118484760).

Almost surely, 2^826749749 is an apocalyptic number.

It is an amenable number.

826749749 is a deficient number, since it is larger than the sum of its proper divisors (121128331).

826749749 is a wasteful number, since it uses less digits than its factorization.

826749749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377659.

The product of its digits is 6096384, while the sum is 56.

The square root of 826749749 is about 28753.2563199371. The cubic root of 826749749 is about 938.5513180036.

The spelling of 826749749 in words is "eight hundred twenty-six million, seven hundred forty-nine thousand, seven hundred forty-nine".