3898911 has 4 divisors (see below), whose sum is σ = 5198552. Its totient is φ = 2599272.

The previous prime is 3898907. The next prime is 3898913. The reversal of 3898911 is 1198983.

It is a happy number.

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

It is not a de Polignac number, because 3898911 - 2² = 3898907 is a prime.

It is a D-number.

It is a Duffinian number.

3898911 is a lucky number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 3898911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898913) 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, 649816 + ... + 649821.

It is an arithmetic number, because the mean of its divisors is an integer number (1299638).

Almost surely, 2^3898911 is an apocalyptic number.

3898911 is a deficient number, since it is larger than the sum of its proper divisors (1299641).

3898911 is a wasteful number, since it uses less digits than its factorization.

3898911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299640.

The product of its digits is 15552, while the sum is 39.

The square root of 3898911 is about 1974.5660282705. The cubic root of 3898911 is about 157.3914394246.

The spelling of 3898911 in words is "three million, eight hundred ninety-eight thousand, nine hundred eleven".