823719942 has 24 divisors (see below), whose sum is σ = 1850828616. Its totient is φ = 274573152.

The previous prime is 823719931. The next prime is 823719961. The reversal of 823719942 is 249917328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 846963 + ... + 847934.

It is an arithmetic number, because the mean of its divisors is an integer number (77117859).

Almost surely, 2^823719942 is an apocalyptic number.

823719942 is an abundant number, since it is smaller than the sum of its proper divisors (1027108674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823719942 is a wasteful number, since it uses less digits than its factorization.

823719942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694914 (or 1694902 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 823719942 is about 28700.5216328902. The cubic root of 823719942 is about 937.4034050877.

The spelling of 823719942 in words is "eight hundred twenty-three million, seven hundred nineteen thousand, nine hundred forty-two".