523456867 has 2 divisors, whose sum is σ = 523456868. Its totient is φ = 523456866.

The previous prime is 523456837. The next prime is 523456883. The reversal of 523456867 is 768654325.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523456867 is a prime.

It is not a weakly prime, because it can be changed into another prime (523456837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261728433 + 261728434.

It is an arithmetic number, because the mean of its divisors is an integer number (261728434).

Almost surely, 2^523456867 is an apocalyptic number.

523456867 is a deficient number, since it is larger than the sum of its proper divisors (1).

523456867 is an equidigital number, since it uses as much as digits as its factorization.

523456867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 46.

The square root of 523456867 is about 22879.1797711369. The cubic root of 523456867 is about 805.9231552859.

The spelling of 523456867 in words is "five hundred twenty-three million, four hundred fifty-six thousand, eight hundred sixty-seven".