523423998 has 16 divisors (see below), whose sum is σ = 1163164560. Its totient is φ = 174474648.

The previous prime is 523423997. The next prime is 523424009. The reversal of 523423998 is 899324325.

It is a happy number.

523423998 is a `hidden beast` number, since 523 + 4 + 2 + 39 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523423997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4846465 + ... + 4846572.

It is an arithmetic number, because the mean of its divisors is an integer number (72697785).

Almost surely, 2^523423998 is an apocalyptic number.

523423998 is an abundant number, since it is smaller than the sum of its proper divisors (639740562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523423998 is a wasteful number, since it uses less digits than its factorization.

523423998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9693048 (or 9693042 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 523423998 is about 22878.4614430254. The cubic root of 523423998 is about 805.9062863744.

The spelling of 523423998 in words is "five hundred twenty-three million, four hundred twenty-three thousand, nine hundred ninety-eight".