523448437 has 2 divisors, whose sum is σ = 523448438. Its totient is φ = 523448436.

The previous prime is 523448399. The next prime is 523448489. The reversal of 523448437 is 734844325.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456634161 + 66814276 = 21369^2 + 8174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523448437 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523448437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523448837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261724218 + 261724219.

It is an arithmetic number, because the mean of its divisors is an integer number (261724219).

Almost surely, 2^523448437 is an apocalyptic number.

It is an amenable number.

523448437 is a deficient number, since it is larger than the sum of its proper divisors (1).

523448437 is an equidigital number, since it uses as much as digits as its factorization.

523448437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 40.

The square root of 523448437 is about 22878.9955417628. The cubic root of 523448437 is about 805.9188289385.

The spelling of 523448437 in words is "five hundred twenty-three million, four hundred forty-eight thousand, four hundred thirty-seven".