823779016 has 32 divisors (see below), whose sum is σ = 1565163000. Its totient is φ = 406422016.

The previous prime is 823778957. The next prime is 823779031. The reversal of 823779016 is 610977328.

It is a happy number.

823779016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 714492900 + 109286116 = 26730^2 + 10454^2 .

It is a super-2 number, since 2×823779016² = 1357223734403856512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481170 + ... + 482878.

Almost surely, 2^823779016 is an apocalyptic number.

It is an amenable number.

823779016 is a deficient number, since it is larger than the sum of its proper divisors (741383984).

823779016 is a wasteful number, since it uses less digits than its factorization.

823779016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481 (or 2477 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 823779016 is about 28701.5507594973. The cubic root of 823779016 is about 937.4258135311.

The spelling of 823779016 in words is "eight hundred twenty-three million, seven hundred seventy-nine thousand, sixteen".