822297074 has 4 divisors (see below), whose sum is σ = 1233445614. Its totient is φ = 411148536.

The previous prime is 822297071. The next prime is 822297169. The reversal of 822297074 is 470792228.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 809800849 + 12496225 = 28457^2 + 3535^2 .

It is a super-2 number, since 2×822297074² = 1352344955817922952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (822297071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205574267 + ... + 205574270.

Almost surely, 2^822297074 is an apocalyptic number.

822297074 is a deficient number, since it is larger than the sum of its proper divisors (411148540).

822297074 is a wasteful number, since it uses less digits than its factorization.

822297074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411148539.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 822297074 is about 28675.7227284684. The cubic root of 822297074 is about 936.8633469252.

The spelling of 822297074 in words is "eight hundred twenty-two million, two hundred ninety-seven thousand, seventy-four".