3964554 has 24 divisors (see below), whose sum is σ = 9371232. Its totient is φ = 1201320.

The previous prime is 3964549. The next prime is 3964589. The reversal of 3964554 is 4554693.

It is a happy number.

3964554 is a `hidden beast` number, since 3 + 9 + 645 + 5 + 4 = 666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9814 + ... + 10209.

It is an arithmetic number, because the mean of its divisors is an integer number (390468).

Almost surely, 2^3964554 is an apocalyptic number.

3964554 is an abundant number, since it is smaller than the sum of its proper divisors (5406678).

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

3964554 is a wasteful number, since it uses less digits than its factorization.

3964554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20042 (or 20039 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 3964554 is about 1991.1187809872. The cubic root of 3964554 is about 158.2698214954.

It can be divided in two parts, 396 and 4554, that added together give a triangular number (4950 = T₉₉).

The spelling of 3964554 in words is "three million, nine hundred sixty-four thousand, five hundred fifty-four".