3858946 has 36 divisors (see below), whose sum is σ = 7322562. Its totient is φ = 1520064.

The previous prime is 3858941. The next prime is 3858947. The reversal of 3858946 is 6498583.

3858946 = T₇₆₄ + T₇₆₅ + ... + T₇₇₆.

It can be written as a sum of positive squares in 3 ways, for example, as 1334025 + 2524921 = 1155^2 + 1589^2 .

It is not an unprimeable number, because it can be changed into a prime (3858941) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16446 + ... + 16678.

Almost surely, 2^3858946 is an apocalyptic number.

3858946 is a deficient number, since it is larger than the sum of its proper divisors (3463616).

3858946 is a wasteful number, since it uses less digits than its factorization.

3858946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 255 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 3858946 is about 1964.4200161880. The cubic root of 3858946 is about 156.8518217318.

The spelling of 3858946 in words is "three million, eight hundred fifty-eight thousand, nine hundred forty-six".