3913998 has 32 divisors (see below), whose sum is σ = 8819712. Its totient is φ = 1147200.

The previous prime is 3913993. The next prime is 3914003. The reversal of 3913998 is 8993193.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3913993) and next prime (3914003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3913991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1090 + ... + 3002.

It is an arithmetic number, because the mean of its divisors is an integer number (275616).

Almost surely, 2^3913998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3913998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4409856).

3913998 is an abundant number, since it is smaller than the sum of its proper divisors (4905714).

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

3913998 is a wasteful number, since it uses less digits than its factorization.

3913998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960.

The product of its digits is 52488, while the sum is 42.

The square root of 3913998 is about 1978.3826727911. The cubic root of 3913998 is about 157.5941890631.

The spelling of 3913998 in words is "three million, nine hundred thirteen thousand, nine hundred ninety-eight".