3379781 has 6 divisors (see below), whose sum is σ = 3533670. Its totient is φ = 3232328.

The previous prime is 3379751. The next prime is 3379793. The reversal of 3379781 is 1879733.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1779556 + 1600225 = 1334^2 + 1265^2 .

It is not a de Polignac number, because 3379781 - 2¹⁰ = 3378757 is a prime.

It is a super-2 number, since 2×3379781² = 22845839215922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3379721) 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, 2666 + ... + 3723.

It is an arithmetic number, because the mean of its divisors is an integer number (588945).

Almost surely, 2^3379781 is an apocalyptic number.

It is an amenable number.

3379781 is a deficient number, since it is larger than the sum of its proper divisors (153889).

3379781 is an equidigital number, since it uses as much as digits as its factorization.

3379781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435 (or 6412 counting only the distinct ones).

The product of its digits is 31752, while the sum is 38.

The square root of 3379781 is about 1838.4180699721. The cubic root of 3379781 is about 150.0707962104.

The spelling of 3379781 in words is "three million, three hundred seventy-nine thousand, seven hundred eighty-one".