3456891 has 8 divisors (see below), whose sum is σ = 5121360. Its totient is φ = 2304576.

The previous prime is 3456889. The next prime is 3456911. The reversal of 3456891 is 1986543.

3456891 is a `hidden beast` number, since 3 + 4 + 568 + 91 = 666.

It is not a de Polignac number, because 3456891 - 2¹ = 3456889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3456821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63990 + ... + 64043.

It is an arithmetic number, because the mean of its divisors is an integer number (640170).

Almost surely, 2^3456891 is an apocalyptic number.

3456891 is a deficient number, since it is larger than the sum of its proper divisors (1664469).

3456891 is a wasteful number, since it uses less digits than its factorization.

3456891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128042 (or 128036 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3456891 is about 1859.2716315805. The cubic root of 3456891 is about 151.2035178068.

The spelling of 3456891 in words is "three million, four hundred fifty-six thousand, eight hundred ninety-one".