823423124 has 12 divisors (see below), whose sum is σ = 1441342644. Its totient is φ = 411610944.

The previous prime is 823423109. The next prime is 823423157. The reversal of 823423124 is 421324328.

It can be written as a sum of positive squares in 2 ways, for example, as 791296900 + 32126224 = 28130^2 + 5668^2 .

It is a super-2 number, since 2×823423124² = 1356051282275838752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4937 + ... + 40880.

It is an arithmetic number, because the mean of its divisors is an integer number (120111887).

Almost surely, 2^823423124 is an apocalyptic number.

It is an amenable number.

823423124 is a deficient number, since it is larger than the sum of its proper divisors (617919520).

823423124 is a wasteful number, since it uses less digits than its factorization.

823423124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50314 (or 50312 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 823423124 is about 28695.3502156708. The cubic root of 823423124 is about 937.2907973852.

The spelling of 823423124 in words is "eight hundred twenty-three million, four hundred twenty-three thousand, one hundred twenty-four".