3851658 has 16 divisors (see below), whose sum is σ = 8559360. Its totient is φ = 1283868.

The previous prime is 3851651. The next prime is 3851677. The reversal of 3851658 is 8561583.

3851658 = T₂₆₇ + T₂₆₈ + ... + T₃₄₇.

3851658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3851651) 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 7 ways as a sum of consecutive naturals, for example, 35610 + ... + 35717.

It is an arithmetic number, because the mean of its divisors is an integer number (534960).

Almost surely, 2^3851658 is an apocalyptic number.

3851658 is an abundant number, since it is smaller than the sum of its proper divisors (4707702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3851658 is a wasteful number, since it uses less digits than its factorization.

3851658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71338 (or 71332 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 3851658 is about 1962.5641390793. The cubic root of 3851658 is about 156.7530161275.

The spelling of 3851658 in words is "three million, eight hundred fifty-one thousand, six hundred fifty-eight".