3146789 has 6 divisors (see below), whose sum is σ = 3199014. Its totient is φ = 3095400.

The previous prime is 3146771. The next prime is 3146809. The reversal of 3146789 is 9876413.

It can be written as a sum of positive squares in only one way, i.e., 3034564 + 112225 = 1742^2 + 335^2 .

It is not a de Polignac number, because 3146789 - 2¹² = 3142693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3146719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4139 + ... + 4839.

It is an arithmetic number, because the mean of its divisors is an integer number (533169).

Almost surely, 2^3146789 is an apocalyptic number.

It is an amenable number.

3146789 is a deficient number, since it is larger than the sum of its proper divisors (52225).

3146789 is an frugal number, since it uses more digits than its factorization.

3146789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 768 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 3146789 is about 1773.9191075131. The cubic root of 3146789 is about 146.5398944727.

The spelling of 3146789 in words is "three million, one hundred forty-six thousand, seven hundred eighty-nine".