822674661 has 4 divisors (see below), whose sum is σ = 1096899552. Its totient is φ = 548449772.

The previous prime is 822674641. The next prime is 822674663. The reversal of 822674661 is 166476228.

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.

It is a cyclic number.

It is not a de Polignac number, because 822674661 - 2¹⁸ = 822412517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822674663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137112441 + ... + 137112446.

It is an arithmetic number, because the mean of its divisors is an integer number (274224888).

Almost surely, 2^822674661 is an apocalyptic number.

It is an amenable number.

822674661 is a deficient number, since it is larger than the sum of its proper divisors (274224891).

822674661 is a wasteful number, since it uses less digits than its factorization.

822674661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274224890.

The product of its digits is 193536, while the sum is 42.

The square root of 822674661 is about 28682.3057127561. The cubic root of 822674661 is about 937.0067230441.

The spelling of 822674661 in words is "eight hundred twenty-two million, six hundred seventy-four thousand, six hundred sixty-one".