3863890 has 32 divisors (see below), whose sum is σ = 7246080. Its totient is φ = 1482624.

The previous prime is 3863887. The next prime is 3863903. The reversal of 3863890 is 983683.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48871 + ... + 48949.

It is an arithmetic number, because the mean of its divisors is an integer number (226440).

Almost surely, 2^3863890 is an apocalyptic number.

3863890 is a deficient number, since it is larger than the sum of its proper divisors (3382190).

3863890 is a wasteful number, since it uses less digits than its factorization.

3863890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3863890 is about 1965.6780000804. The cubic root of 3863890 is about 156.9187782244.

It can be divided in two parts, 3863 and 890, that added together give a triangular number (4753 = T₉₇).

The spelling of 3863890 in words is "three million, eight hundred sixty-three thousand, eight hundred ninety".