3922389 has 12 divisors (see below), whose sum is σ = 5725356. Its totient is φ = 2587392.

The previous prime is 3922367. The next prime is 3922403. The reversal of 3922389 is 9832293.

It can be written as a sum of positive squares in 2 ways, for example, as 3186225 + 736164 = 1785^2 + 858^2 .

It is not a de Polignac number, because 3922389 - 2⁵ = 3922357 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3922309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1374 + ... + 3119.

It is an arithmetic number, because the mean of its divisors is an integer number (477113).

Almost surely, 2^3922389 is an apocalyptic number.

It is an amenable number.

3922389 is a deficient number, since it is larger than the sum of its proper divisors (1802967).

3922389 is a wasteful number, since it uses less digits than its factorization.

3922389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596 (or 4593 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 3922389 is about 1980.5022090369. The cubic root of 3922389 is about 157.7067277834.

The spelling of 3922389 in words is "three million, nine hundred twenty-two thousand, three hundred eighty-nine".