523494399 has 32 divisors (see below), whose sum is σ = 734469120. Its totient is φ = 331235072.

The previous prime is 523494373. The next prime is 523494449. The reversal of 523494399 is 993494325.

It is a Cunningham number, because it is equal to 22880²-1.

It is a cyclic number.

It is not a de Polignac number, because 523494399 - 2¹⁶ = 523428863 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523492399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1990342 + ... + 1990604.

It is an arithmetic number, because the mean of its divisors is an integer number (22952160).

Almost surely, 2^523494399 is an apocalyptic number.

523494399 is a deficient number, since it is larger than the sum of its proper divisors (210974721).

523494399 is a wasteful number, since it uses less digits than its factorization.

523494399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 1049760, while the sum is 48.

The square root of 523494399 is about 22879.9999781469. Note that the first 4 decimals coincide. The cubic root of 523494399 is about 805.9424164622.

The spelling of 523494399 in words is "five hundred twenty-three million, four hundred ninety-four thousand, three hundred ninety-nine".