3397881 has 4 divisors (see below), whose sum is σ = 4530512. Its totient is φ = 2265252.

The previous prime is 3397873. The next prime is 3397897. The reversal of 3397881 is 1887933.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1887933 = 3 ⋅629311.

It is not a de Polignac number, because 3397881 - 2³ = 3397873 is a prime.

It is a super-2 number, since 2×3397881² = 23091190580322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3397811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566311 + ... + 566316.

It is an arithmetic number, because the mean of its divisors is an integer number (1132628).

Almost surely, 2^3397881 is an apocalyptic number.

It is an amenable number.

3397881 is a deficient number, since it is larger than the sum of its proper divisors (1132631).

3397881 is a wasteful number, since it uses less digits than its factorization.

3397881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132630.

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

The square root of 3397881 is about 1843.3342073536. The cubic root of 3397881 is about 150.3382146105.

It can be divided in two parts, 3397 and 881, that added together give a triangular number (4278 = T₉₂).

The spelling of 3397881 in words is "three million, three hundred ninety-seven thousand, eight hundred eighty-one".