3486861 has 32 divisors (see below), whose sum is σ = 6220800. Its totient is φ = 1885680.

The previous prime is 3486839. The next prime is 3486863. The reversal of 3486861 is 1686843.

It is a happy number.

3486861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3486861 - 2⁵ = 3486829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3486863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3106 + ... + 4076.

It is an arithmetic number, because the mean of its divisors is an integer number (194400).

Almost surely, 2^3486861 is an apocalyptic number.

It is an amenable number.

3486861 is a deficient number, since it is larger than the sum of its proper divisors (2733939).

3486861 is a wasteful number, since it uses less digits than its factorization.

3486861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 1000 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 3486861 is about 1867.3138461437. The cubic root of 3486861 is about 151.6392211068.

The spelling of 3486861 in words is "three million, four hundred eighty-six thousand, eight hundred sixty-one".