3447881 has 4 divisors (see below), whose sum is σ = 3452100. Its totient is φ = 3443664.

The previous prime is 3447859. The next prime is 3447883. The reversal of 3447881 is 1887443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 3182656 = 515^2 + 1784^2 .

It is a cyclic number.

It is not a de Polignac number, because 3447881 - 2⁶ = 3447817 is a prime.

It is a super-2 number, since 2×3447881² = 23775766780322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3447883) 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, 446 + ... + 2663.

It is an arithmetic number, because the mean of its divisors is an integer number (863025).

Almost surely, 2^3447881 is an apocalyptic number.

It is an amenable number.

3447881 is a deficient number, since it is larger than the sum of its proper divisors (4219).

3447881 is a wasteful number, since it uses less digits than its factorization.

3447881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its digits is 21504, while the sum is 35.

The square root of 3447881 is about 1856.8470588608. The cubic root of 3447881 is about 151.0720384890.

The spelling of 3447881 in words is "three million, four hundred forty-seven thousand, eight hundred eighty-one".