3998950 has 12 divisors (see below), whose sum is σ = 7438140. Its totient is φ = 1599560.

The previous prime is 3998899. The next prime is 3998959. The reversal of 3998950 is 598993.

3998950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3998950² = 31983202205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3998897 and 3998906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39940 + ... + 40039.

It is an arithmetic number, because the mean of its divisors is an integer number (619845).

Almost surely, 2^3998950 is an apocalyptic number.

3998950 is a deficient number, since it is larger than the sum of its proper divisors (3439190).

3998950 is a wasteful number, since it uses less digits than its factorization.

3998950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79991 (or 79986 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 3998950 is about 1999.7374827712. The cubic root of 3998950 is about 158.7262142221.

Adding to 3998950 its sum of digits (43), we get a palindrome (3998993).

It can be divided in two parts, 39 and 98950, that added together give a palindrome (98989).

The spelling of 3998950 in words is "three million, nine hundred ninety-eight thousand, nine hundred fifty".