3851636 has 6 divisors (see below), whose sum is σ = 6740370. Its totient is φ = 1925816.

The previous prime is 3851611. The next prime is 3851641. The reversal of 3851636 is 6361583.

It can be written as a sum of positive squares in only one way, i.e., 3724900 + 126736 = 1930^2 + 356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481451 + ... + 481458.

It is an arithmetic number, because the mean of its divisors is an integer number (1123395).

Almost surely, 2^3851636 is an apocalyptic number.

It is an amenable number.

3851636 is a deficient number, since it is larger than the sum of its proper divisors (2888734).

3851636 is a wasteful number, since it uses less digits than its factorization.

3851636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962913 (or 962911 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 3851636 is about 1962.5585341589. The cubic root of 3851636 is about 156.7527176783.

The spelling of 3851636 in words is "three million, eight hundred fifty-one thousand, six hundred thirty-six".