523039998 has 64 divisors (see below), whose sum is σ = 1203148800. Its totient is φ = 150353280.

The previous prime is 523039927. The next prime is 523040041. The reversal of 523039998 is 899930325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66393 + ... + 73851.

It is an arithmetic number, because the mean of its divisors is an integer number (18799200).

Almost surely, 2^523039998 is an apocalyptic number.

523039998 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 523039998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601574400).

523039998 is an abundant number, since it is smaller than the sum of its proper divisors (680108802).

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

523039998 is a wasteful number, since it uses less digits than its factorization.

523039998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7537.

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 523039998 is about 22870.0677305512. The cubic root of 523039998 is about 805.7091589185.

The spelling of 523039998 in words is "five hundred twenty-three million, thirty-nine thousand, nine hundred ninety-eight".