822682509 has 12 divisors (see below), whose sum is σ = 1205695008. Its totient is φ = 498595240.

The previous prime is 822682499. The next prime is 822682543. The reversal of 822682509 is 905286228.

It is not a de Polignac number, because 822682509 - 2⁷ = 822682381 is a prime.

It is a super-2 number, since 2×822682509² = 1353613021229070162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822682409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1132809 + ... + 1133534.

It is an arithmetic number, because the mean of its divisors is an integer number (100474584).

Almost surely, 2^822682509 is an apocalyptic number.

It is an amenable number.

822682509 is a deficient number, since it is larger than the sum of its proper divisors (383012499).

822682509 is a wasteful number, since it uses less digits than its factorization.

822682509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266368 (or 2266357 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 822682509 is about 28682.4425215148. The cubic root of 822682509 is about 937.0097025959.

The spelling of 822682509 in words is "eight hundred twenty-two million, six hundred eighty-two thousand, five hundred nine".