822711149 has 4 divisors (see below), whose sum is σ = 885996636. Its totient is φ = 759425664.

The previous prime is 822711101. The next prime is 822711199. The reversal of 822711149 is 941117228.

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 426422500 + 396288649 = 20650^2 + 19907^2 .

It is a cyclic number.

It is not a de Polignac number, because 822711149 - 2¹⁶ = 822645613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822711199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31642724 + ... + 31642749.

It is an arithmetic number, because the mean of its divisors is an integer number (221499159).

Almost surely, 2^822711149 is an apocalyptic number.

It is an amenable number.

822711149 is a deficient number, since it is larger than the sum of its proper divisors (63285487).

822711149 is a wasteful number, since it uses less digits than its factorization.

822711149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63285486.

The product of its digits is 8064, while the sum is 35.

The square root of 822711149 is about 28682.9417773003. The cubic root of 822711149 is about 937.0205758252.

The spelling of 822711149 in words is "eight hundred twenty-two million, seven hundred eleven thousand, one hundred forty-nine".