3784890 has 32 divisors (see below), whose sum is σ = 9204480. Its totient is φ = 995904.

The previous prime is 3784873. The next prime is 3784901. The reversal of 3784890 is 984873.

3784890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572 + ... + 3168.

It is an arithmetic number, because the mean of its divisors is an integer number (287640).

Almost surely, 2^3784890 is an apocalyptic number.

3784890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3784890 is an abundant number, since it is smaller than the sum of its proper divisors (5419590).

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

3784890 is a wasteful number, since it uses less digits than its factorization.

3784890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 3784890 is about 1945.4793753726. The cubic root of 3784890 is about 155.8419668515.

The spelling of 3784890 in words is "three million, seven hundred eighty-four thousand, eight hundred ninety".