3855958 has 4 divisors (see below), whose sum is σ = 5783940. Its totient is φ = 1927978.

The previous prime is 3855953. The next prime is 3855961. The reversal of 3855958 is 8595583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8595583 = 23 ⋅373721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855953) 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 as a sum of consecutive naturals, namely, 963988 + ... + 963991.

It is an arithmetic number, because the mean of its divisors is an integer number (1445985).

Almost surely, 2^3855958 is an apocalyptic number.

3855958 is a deficient number, since it is larger than the sum of its proper divisors (1927982).

3855958 is a wasteful number, since it uses less digits than its factorization.

3855958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927981.

The product of its digits is 216000, while the sum is 43.

The square root of 3855958 is about 1963.6593390912. The cubic root of 3855958 is about 156.8113275778.

The spelling of 3855958 in words is "three million, eight hundred fifty-five thousand, nine hundred fifty-eight".