523667 has 2 divisors, whose sum is σ = 523668. Its totient is φ = 523666.

The previous prime is 523657. The next prime is 523669. The reversal of 523667 is 766325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523667 - 2⁶ = 523603 is a prime.

Together with 523669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261833 + 261834.

It is an arithmetic number, because the mean of its divisors is an integer number (261834).

2⁵²³⁶⁶⁷ is an apocalyptic number.

523667 is a deficient number, since it is larger than the sum of its proper divisors (1).

523667 is an equidigital number, since it uses as much as digits as its factorization.

523667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 29.

The square root of 523667 is about 723.6483952860. The cubic root of 523667 is about 80.6030982314.

The spelling of 523667 in words is "five hundred twenty-three thousand, six hundred sixty-seven".