3389781 has 16 divisors (see below), whose sum is σ = 4780800. Its totient is φ = 2132928.

The previous prime is 3389773. The next prime is 3389797. The reversal of 3389781 is 1879833.

It is not a de Polignac number, because 3389781 - 2³ = 3389773 is a prime.

It is a super-2 number, since 2×3389781² = 22981230455922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3389081) 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 15 ways as a sum of consecutive naturals, for example, 3675 + ... + 4503.

It is an arithmetic number, because the mean of its divisors is an integer number (298800).

Almost surely, 2^3389781 is an apocalyptic number.

It is an amenable number.

3389781 is a deficient number, since it is larger than the sum of its proper divisors (1391019).

3389781 is a wasteful number, since it uses less digits than its factorization.

3389781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its digits is 36288, while the sum is 39.

The square root of 3389781 is about 1841.1357907553. The cubic root of 3389781 is about 150.2186588782.

The spelling of 3389781 in words is "three million, three hundred eighty-nine thousand, seven hundred eighty-one".