523867 has 2 divisors, whose sum is σ = 523868. Its totient is φ = 523866.

The previous prime is 523847. The next prime is 523877. The reversal of 523867 is 768325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523867 - 2¹¹ = 521819 is a prime.

523867 is a lucky number.

It is a nialpdrome in base 9.

It is not a weakly prime, because it can be changed into another prime (523847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261933 + 261934.

It is an arithmetic number, because the mean of its divisors is an integer number (261934).

2⁵²³⁸⁶⁷ is an apocalyptic number.

523867 is a deficient number, since it is larger than the sum of its proper divisors (1).

523867 is an equidigital number, since it uses as much as digits as its factorization.

523867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 523867 is about 723.7865707514. The cubic root of 523867 is about 80.6133582935.

The spelling of 523867 in words is "five hundred twenty-three thousand, eight hundred sixty-seven".