3900858 has 24 divisors (see below), whose sum is σ = 8450208. Its totient is φ = 1199952.

The previous prime is 3900857. The next prime is 3900881. The reversal of 3900858 is 8580093.

3900858 is a modest number, since divided by 858 gives 390 as remainder.

It is not an unprimeable number, because it can be changed into a prime (3900857) 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 11 ways as a sum of consecutive naturals, for example, 910 + ... + 2937.

It is an arithmetic number, because the mean of its divisors is an integer number (352092).

Almost surely, 2^3900858 is an apocalyptic number.

3900858 is an abundant number, since it is smaller than the sum of its proper divisors (4549350).

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

3900858 is a wasteful number, since it uses less digits than its factorization.

3900858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878 (or 3865 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 3900858 is about 1975.0589864609. The cubic root of 3900858 is about 157.4176339301.

It can be divided in two parts, 390085 and 8, that added together give a palindrome (390093).

The spelling of 3900858 in words is "three million, nine hundred thousand, eight hundred fifty-eight".