3988830 has 16 divisors (see below), whose sum is σ = 9573264. Its totient is φ = 1063680.

The previous prime is 3988823. The next prime is 3988877. The reversal of 3988830 is 388893.

3988830 = 50² + 51² + ... + 229².

It is a happy number.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66451 + ... + 66510.

It is an arithmetic number, because the mean of its divisors is an integer number (598329).

Almost surely, 2^3988830 is an apocalyptic number.

3988830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3988830 is an abundant number, since it is smaller than the sum of its proper divisors (5584434).

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

3988830 is a wasteful number, since it uses less digits than its factorization.

3988830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132971.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 3988830 is about 1997.2055477592. The cubic root of 3988830 is about 158.5922068613.

The spelling of 3988830 in words is "three million, nine hundred eighty-eight thousand, eight hundred thirty".