3898931 has 4 divisors (see below), whose sum is σ = 3957192. Its totient is φ = 3840672.

The previous prime is 3898927. The next prime is 3898943. The reversal of 3898931 is 1398983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1398983 = 421 ⋅3323.

It is a cyclic number.

It is not a de Polignac number, because 3898931 - 2² = 3898927 is a prime.

It is a super-2 number, since 2×3898931² = 30403325885522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3898981) 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, 29030 + ... + 29163.

It is an arithmetic number, because the mean of its divisors is an integer number (989298).

Almost surely, 2^3898931 is an apocalyptic number.

3898931 is a deficient number, since it is larger than the sum of its proper divisors (58261).

3898931 is an equidigital number, since it uses as much as digits as its factorization.

3898931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58260.

The product of its digits is 46656, while the sum is 41.

The square root of 3898931 is about 1974.5710926680. The cubic root of 3898931 is about 157.3917085445.

The spelling of 3898931 in words is "three million, eight hundred ninety-eight thousand, nine hundred thirty-one".