523405827 has 16 divisors (see below), whose sum is σ = 886190080. Its totient is φ = 299088936.

The previous prime is 523405807. The next prime is 523405849. The reversal of 523405827 is 728504325.

It is not a de Polignac number, because 523405827 - 2⁶ = 523405763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523405791 and 523405800.

It is not an unprimeable number, because it can be changed into a prime (523405807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1384483 + ... + 1384860.

It is an arithmetic number, because the mean of its divisors is an integer number (55386880).

Almost surely, 2^523405827 is an apocalyptic number.

523405827 is a deficient number, since it is larger than the sum of its proper divisors (362784253).

523405827 is a wasteful number, since it uses less digits than its factorization.

523405827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769359 (or 2769353 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 523405827 is about 22878.0643193431. The cubic root of 523405827 is about 805.8969604152.

The spelling of 523405827 in words is "five hundred twenty-three million, four hundred five thousand, eight hundred twenty-seven".