3912789 has 8 divisors (see below), whose sum is σ = 5385472. Its totient is φ = 2524320.

The previous prime is 3912781. The next prime is 3912809. The reversal of 3912789 is 9872193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3912789 - 2³ = 3912781 is a prime.

It is a super-3 number, since 3×3912789³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3912781) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20944 + ... + 21129.

It is an arithmetic number, because the mean of its divisors is an integer number (673184).

Almost surely, 2^3912789 is an apocalyptic number.

It is an amenable number.

3912789 is a deficient number, since it is larger than the sum of its proper divisors (1472683).

3912789 is a wasteful number, since it uses less digits than its factorization.

3912789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42107.

The product of its digits is 27216, while the sum is 39.

The square root of 3912789 is about 1978.0770965764. The cubic root of 3912789 is about 157.5779608999.

The spelling of 3912789 in words is "three million, nine hundred twelve thousand, seven hundred eighty-nine".