823234539 has 8 divisors (see below), whose sum is σ = 1097884672. Its totient is φ = 548703720.

The previous prime is 823234519. The next prime is 823234547. The reversal of 823234539 is 935432328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 823234539 - 2⁷ = 823234411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 823234497 and 823234506.

It is not an unprimeable number, because it can be changed into a prime (823234519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12247 + ... + 42384.

It is an arithmetic number, because the mean of its divisors is an integer number (137235584).

Almost surely, 2^823234539 is an apocalyptic number.

823234539 is a deficient number, since it is larger than the sum of its proper divisors (274650133).

823234539 is a wasteful number, since it uses less digits than its factorization.

823234539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59657.

The product of its digits is 155520, while the sum is 39.

The square root of 823234539 is about 28692.0640421703. The cubic root of 823234539 is about 937.2192373833.

The spelling of 823234539 in words is "eight hundred twenty-three million, two hundred thirty-four thousand, five hundred thirty-nine".