523789497 has 80 divisors (see below), whose sum is σ = 984246912. Its totient is φ = 269671680.

The previous prime is 523789489. The next prime is 523789571. The reversal of 523789497 is 794987325.

523789497 is a `hidden beast` number, since 523 + 78 + 9 + 49 + 7 = 666.

It is not a de Polignac number, because 523789497 - 2³ = 523789489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523789897) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 854163 + ... + 854775.

Almost surely, 2^523789497 is an apocalyptic number.

It is an amenable number.

523789497 is a deficient number, since it is larger than the sum of its proper divisors (460457415).

523789497 is a wasteful number, since it uses less digits than its factorization.

523789497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 771 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 523789497 is about 22886.4478895262. The cubic root of 523789497 is about 806.0938267545.

The spelling of 523789497 in words is "five hundred twenty-three million, seven hundred eighty-nine thousand, four hundred ninety-seven".