3984955 has 16 divisors (see below), whose sum is σ = 5209344. Its totient is φ = 2908800.

The previous prime is 3984949. The next prime is 3984971. The reversal of 3984955 is 5594893.

It is a happy number.

It is not a de Polignac number, because 3984955 - 2²¹ = 1887803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6262 + ... + 6868.

It is an arithmetic number, because the mean of its divisors is an integer number (325584).

Almost surely, 2^3984955 is an apocalyptic number.

3984955 is a deficient number, since it is larger than the sum of its proper divisors (1224389).

3984955 is a wasteful number, since it uses less digits than its factorization.

3984955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its digits is 194400, while the sum is 43.

The square root of 3984955 is about 1996.2352065826. The cubic root of 3984955 is about 158.5408347454.

The spelling of 3984955 in words is "three million, nine hundred eighty-four thousand, nine hundred fifty-five".