3890384 has 10 divisors (see below), whose sum is σ = 7537650. Its totient is φ = 1945184.

The previous prime is 3890377. The next prime is 3890387. The reversal of 3890384 is 4830983.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 1600 = 1972^2 + 40^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121559 + ... + 121590.

It is an arithmetic number, because the mean of its divisors is an integer number (753765).

Almost surely, 2^3890384 is an apocalyptic number.

It is an amenable number.

3890384 is a deficient number, since it is larger than the sum of its proper divisors (3647266).

3890384 is a wasteful number, since it uses less digits than its factorization.

3890384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243157 (or 243151 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 3890384 is about 1972.4056377936. The cubic root of 3890384 is about 157.2766162190.

The spelling of 3890384 in words is "three million, eight hundred ninety thousand, three hundred eighty-four".