3456681 has 4 divisors (see below), whose sum is σ = 4608912. Its totient is φ = 2304452.

The previous prime is 3456667. The next prime is 3456703. The reversal of 3456681 is 1866543.

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.

It is a cyclic number.

It is not a de Polignac number, because 3456681 - 2⁶ = 3456617 is a prime.

It is a super-2 number, since 2×3456681² = 23897287071522, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3456611) 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 3 ways as a sum of consecutive naturals, for example, 576111 + ... + 576116.

It is an arithmetic number, because the mean of its divisors is an integer number (1152228).

Almost surely, 2^3456681 is an apocalyptic number.

It is an amenable number.

3456681 is a deficient number, since it is larger than the sum of its proper divisors (1152231).

3456681 is a wasteful number, since it uses less digits than its factorization.

3456681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152230.

The product of its digits is 17280, while the sum is 33.

The square root of 3456681 is about 1859.2151569950. The cubic root of 3456681 is about 151.2004559629.

The spelling of 3456681 in words is "three million, four hundred fifty-six thousand, six hundred eighty-one".