3861634 has 16 divisors (see below), whose sum is σ = 6687936. Its totient is φ = 1638000.

The previous prime is 3861607. The next prime is 3861659. The reversal of 3861634 is 4361683.

3861634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3861596 and 3861605.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 49 + ... + 2779.

It is an arithmetic number, because the mean of its divisors is an integer number (417996).

Almost surely, 2^3861634 is an apocalyptic number.

3861634 is a deficient number, since it is larger than the sum of its proper divisors (2826302).

3861634 is a wasteful number, since it uses less digits than its factorization.

3861634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841.

The product of its digits is 10368, while the sum is 31.

The square root of 3861634 is about 1965.1040684910. The cubic root of 3861634 is about 156.8882323510. Note that the first 3 decimals are identical.

The spelling of 3861634 in words is "three million, eight hundred sixty-one thousand, six hundred thirty-four".