823345004 has 6 divisors (see below), whose sum is σ = 1440853764. Its totient is φ = 411672500.

The previous prime is 823345001. The next prime is 823345043. The reversal of 823345004 is 400543328.

It is a super-2 number, since 2×823345004² = 1355793991223520032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (823345001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102918122 + ... + 102918129.

It is an arithmetic number, because the mean of its divisors is an integer number (240142294).

Almost surely, 2^823345004 is an apocalyptic number.

It is an amenable number.

823345004 is a deficient number, since it is larger than the sum of its proper divisors (617508760).

823345004 is a wasteful number, since it uses less digits than its factorization.

823345004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205836255 (or 205836253 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 823345004 is about 28693.9889872426. The cubic root of 823345004 is about 937.2611554872.

The spelling of 823345004 in words is "eight hundred twenty-three million, three hundred forty-five thousand, four".