822086749 has 8 divisors (see below), whose sum is σ = 899746848. Its totient is φ = 744914160.

The previous prime is 822086747. The next prime is 822086753. The reversal of 822086749 is 947680228.

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 822086749 - 2¹ = 822086747 is a prime.

It is a super-3 number, since 3×822086749³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 822086699 and 822086708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822086747) 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, 118342 + ... + 125095.

It is an arithmetic number, because the mean of its divisors is an integer number (112468356).

Almost surely, 2^822086749 is an apocalyptic number.

It is an amenable number.

822086749 is a deficient number, since it is larger than the sum of its proper divisors (77660099).

822086749 is a wasteful number, since it uses less digits than its factorization.

822086749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243755.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 822086749 is about 28672.0551931667. The cubic root of 822086749 is about 936.7834639600.

The spelling of 822086749 in words is "eight hundred twenty-two million, eighty-six thousand, seven hundred forty-nine".