5231988 has 72 divisors (see below), whose sum is σ = 14309568. Its totient is φ = 1605888.

The previous prime is 5231987. The next prime is 5232023. The reversal of 5231988 is 8891325.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5231981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50745 + ... + 50847.

It is an arithmetic number, because the mean of its divisors is an integer number (198744).

Almost surely, 2^5231988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5231988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7154784).

5231988 is an abundant number, since it is smaller than the sum of its proper divisors (9077580).

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

5231988 is a wasteful number, since it uses less digits than its factorization.

5231988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 208 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 5231988 is about 2287.3539297625. The cubic root of 5231988 is about 173.6023419874.

The spelling of 5231988 in words is "five million, two hundred thirty-one thousand, nine hundred eighty-eight".