3861562 has 16 divisors (see below), whose sum is σ = 6100992. Its totient is φ = 1829520.

The previous prime is 3861551. The next prime is 3861563. The reversal of 3861562 is 2651683.

It is a super-2 number, since 2×3861562² = 29823322159688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3861563) 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 7 ways as a sum of consecutive naturals, for example, 5512 + ... + 6172.

It is an arithmetic number, because the mean of its divisors is an integer number (381312).

Almost surely, 2^3861562 is an apocalyptic number.

3861562 is a deficient number, since it is larger than the sum of its proper divisors (2239430).

3861562 is a wasteful number, since it uses less digits than its factorization.

3861562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 8640, while the sum is 31.

The square root of 3861562 is about 1965.0857487652. The cubic root of 3861562 is about 156.8872572868.

The spelling of 3861562 in words is "three million, eight hundred sixty-one thousand, five hundred sixty-two".