3889903 has 4 divisors (see below), whose sum is σ = 3893968. Its totient is φ = 3885840.

The previous prime is 3889901. The next prime is 3889913. The reversal of 3889903 is 3099883.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3099883 = 1693 ⋅1831.

It is a cyclic number.

It is not a de Polignac number, because 3889903 - 2¹ = 3889901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (973492).

Almost surely, 2^3889903 is an apocalyptic number.

3889903 is a deficient number, since it is larger than the sum of its proper divisors (4065).

3889903 is a wasteful number, since it uses less digits than its factorization.

3889903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 3889903 is about 1972.2837017022. The cubic root of 3889903 is about 157.2701341536.

The spelling of 3889903 in words is "three million, eight hundred eighty-nine thousand, nine hundred three".