3865494 has 16 divisors (see below), whose sum is σ = 8185968. Its totient is φ = 1212672.

The previous prime is 3865481. The next prime is 3865513. The reversal of 3865494 is 4945683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18847 + ... + 19050.

It is an arithmetic number, because the mean of its divisors is an integer number (511623).

Almost surely, 2^3865494 is an apocalyptic number.

3865494 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3865494 is an abundant number, since it is smaller than the sum of its proper divisors (4320474).

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

3865494 is a wasteful number, since it uses less digits than its factorization.

3865494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37919.

The product of its digits is 103680, while the sum is 39.

The square root of 3865494 is about 1966.0859594636. The cubic root of 3865494 is about 156.9404888925.

The spelling of 3865494 in words is "three million, eight hundred sixty-five thousand, four hundred ninety-four".