3898950 has 96 divisors (see below), whose sum is σ = 11249280. Its totient is φ = 883200.

The previous prime is 3898943. The next prime is 3898957. The reversal of 3898950 is 598983.

It is an interprime number because it is at equal distance from previous prime (3898943) and next prime (3898957).

It is a super-2 number, since 2×3898950² = 30403622205000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898957) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27981 + ... + 28119.

It is an arithmetic number, because the mean of its divisors is an integer number (117180).

Almost surely, 2^3898950 is an apocalyptic number.

3898950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3898950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5624640).

3898950 is an abundant number, since it is smaller than the sum of its proper divisors (7350330).

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

3898950 is a wasteful number, since it uses less digits than its factorization.

3898950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 3898950 is about 1974.5759038335. The cubic root of 3898950 is about 157.3919642075.

It can be divided in two parts, 389 and 8950, that added together give a palindrome (9339).

The spelling of 3898950 in words is "three million, eight hundred ninety-eight thousand, nine hundred fifty".