822890461 has 4 divisors (see below), whose sum is σ = 823160800. Its totient is φ = 822620124.

The previous prime is 822890407. The next prime is 822890483. The reversal of 822890461 is 164098228.

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 822890461 - 2⁷ = 822890333 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 (822890161) 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, 130551 + ... + 136708.

It is an arithmetic number, because the mean of its divisors is an integer number (205790200).

Almost surely, 2^822890461 is an apocalyptic number.

It is an amenable number.

822890461 is a deficient number, since it is larger than the sum of its proper divisors (270339).

822890461 is a wasteful number, since it uses less digits than its factorization.

822890461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270338.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 822890461 is about 28686.0673672778. The cubic root of 822890461 is about 937.0886462240.

It can be divided in two parts, 8228 and 90461, that added together give a palindrome (98689).

The spelling of 822890461 in words is "eight hundred twenty-two million, eight hundred ninety thousand, four hundred sixty-one".