3456881 has 2 divisors, whose sum is σ = 3456882. Its totient is φ = 3456880.

The previous prime is 3456863. The next prime is 3456889. The reversal of 3456881 is 1886543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3389281 + 67600 = 1841^2 + 260^2 .

It is an emirp because it is prime and its reverse (1886543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3456881 - 2¹⁰ = 3455857 is a prime.

It is a super-2 number, since 2×3456881² = 23900052496322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3456889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728440 + 1728441.

It is an arithmetic number, because the mean of its divisors is an integer number (1728441).

Almost surely, 2^3456881 is an apocalyptic number.

It is an amenable number.

3456881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3456881 is an equidigital number, since it uses as much as digits as its factorization.

3456881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 35.

The square root of 3456881 is about 1859.2689423534. The cubic root of 3456881 is about 151.2033720075.

The spelling of 3456881 in words is "three million, four hundred fifty-six thousand, eight hundred eighty-one".