5281998 has 16 divisors (see below), whose sum is σ = 10587216. Its totient is φ = 1756800.

The previous prime is 5281993. The next prime is 5281999. The reversal of 5281998 is 8991825.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281993) 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, 3798 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (661701).

Almost surely, 2^5281998 is an apocalyptic number.

5281998 is an abundant number, since it is smaller than the sum of its proper divisors (5305218).

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

5281998 is a wasteful number, since it uses less digits than its factorization.

5281998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939.

The product of its digits is 51840, while the sum is 42.

The square root of 5281998 is about 2298.2597764396. The cubic root of 5281998 is about 174.1537153998.

The spelling of 5281998 in words is "five million, two hundred eighty-one thousand, nine hundred ninety-eight".