523487 has 2 divisors, whose sum is σ = 523488. Its totient is φ = 523486.

The previous prime is 523463. The next prime is 523489. The reversal of 523487 is 784325.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523487 - 2¹² = 519391 is a prime.

Together with 523489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261743 + 261744.

It is an arithmetic number, because the mean of its divisors is an integer number (261744).

2⁵²³⁴⁸⁷ is an apocalyptic number.

523487 is a deficient number, since it is larger than the sum of its proper divisors (1).

523487 is an equidigital number, since it uses as much as digits as its factorization.

523487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 29.

The square root of 523487 is about 723.5240148053. The cubic root of 523487 is about 80.5938619417.

The spelling of 523487 in words is "five hundred twenty-three thousand, four hundred eighty-seven".