3995550 has 72 divisors (see below), whose sum is σ = 11577384. Its totient is φ = 982080.

The previous prime is 3995543. The next prime is 3995557. The reversal of 3995550 is 555993.

It is an interprime number because it is at equal distance from previous prime (3995543) and next prime (3995557).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995557) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5509 + ... + 6191.

It is an arithmetic number, because the mean of its divisors is an integer number (160797).

Almost surely, 2^3995550 is an apocalyptic number.

3995550 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 3995550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5788692).

3995550 is an abundant number, since it is smaller than the sum of its proper divisors (7581834).

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

3995550 is a wasteful number, since it uses less digits than its factorization.

3995550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 30375, while the sum is 36.

The square root of 3995550 is about 1998.8871904137. The cubic root of 3995550 is about 158.6812172315.

The spelling of 3995550 in words is "three million, nine hundred ninety-five thousand, five hundred fifty".