823074229 has 2 divisors, whose sum is σ = 823074230. Its totient is φ = 823074228.

The previous prime is 823074209. The next prime is 823074233. The reversal of 823074229 is 922470328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 757900900 + 65173329 = 27530^2 + 8073^2 .

It is a cyclic number.

It is not a de Polignac number, because 823074229 - 2²¹ = 820977077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823074209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411537114 + 411537115.

It is an arithmetic number, because the mean of its divisors is an integer number (411537115).

Almost surely, 2^823074229 is an apocalyptic number.

It is an amenable number.

823074229 is a deficient number, since it is larger than the sum of its proper divisors (1).

823074229 is an equidigital number, since it uses as much as digits as its factorization.

823074229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 823074229 is about 28689.2702765337. The cubic root of 823074229 is about 937.1583979496.

The spelling of 823074229 in words is "eight hundred twenty-three million, seventy-four thousand, two hundred twenty-nine".