3915858 has 32 divisors (see below), whose sum is σ = 8317440. Its totient is φ = 1226880.

The previous prime is 3915853. The next prime is 3915887. The reversal of 3915858 is 8585193.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3915853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6598 + ... + 7166.

It is an arithmetic number, because the mean of its divisors is an integer number (259920).

Almost surely, 2^3915858 is an apocalyptic number.

3915858 is an abundant number, since it is smaller than the sum of its proper divisors (4401582).

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

3915858 is a wasteful number, since it uses less digits than its factorization.

3915858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its digits is 43200, while the sum is 39.

The square root of 3915858 is about 1978.8526979035. The cubic root of 3915858 is about 157.6191489440.

The spelling of 3915858 in words is "three million, nine hundred fifteen thousand, eight hundred fifty-eight".