3898903 has 4 divisors (see below), whose sum is σ = 3937608. Its totient is φ = 3860200.

The previous prime is 3898889. The next prime is 3898907. The reversal of 3898903 is 3098983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3898903 - 2⁵ = 3898871 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3898903 is a lucky number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898907) 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, 19201 + ... + 19402.

It is an arithmetic number, because the mean of its divisors is an integer number (984402).

Almost surely, 2^3898903 is an apocalyptic number.

3898903 is a deficient number, since it is larger than the sum of its proper divisors (38705).

3898903 is a wasteful number, since it uses less digits than its factorization.

3898903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38704.

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

The square root of 3898903 is about 1974.5640025079. The cubic root of 3898903 is about 157.3913317764.

The spelling of 3898903 in words is "three million, eight hundred ninety-eight thousand, nine hundred three".