3954789 has 6 divisors (see below), whose sum is σ = 5712486. Its totient is φ = 2636520.

The previous prime is 3954767. The next prime is 3954799. The reversal of 3954789 is 9874593.

3954789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3932289 + 22500 = 1983^2 + 150^2 .

It is not a de Polignac number, because 3954789 - 2¹² = 3950693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954719) 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, 219702 + ... + 219719.

It is an arithmetic number, because the mean of its divisors is an integer number (952081).

Almost surely, 2^3954789 is an apocalyptic number.

It is an amenable number.

3954789 is a deficient number, since it is larger than the sum of its proper divisors (1757697).

3954789 is a wasteful number, since it uses less digits than its factorization.

3954789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439427 (or 439424 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 3954789 is about 1988.6651301815. The cubic root of 3954789 is about 158.1397711000.

It can be divided in two parts, 395 and 4789, that added together give a square (5184 = 72²).

The spelling of 3954789 in words is "three million, nine hundred fifty-four thousand, seven hundred eighty-nine".