3898013 has 4 divisors (see below), whose sum is σ = 4454880. Its totient is φ = 3341148.

The previous prime is 3898007. The next prime is 3898019. The reversal of 3898013 is 3108983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3108983 = 173 ⋅17971.

It is an interprime number because it is at equal distance from previous prime (3898007) and next prime (3898019).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3898013 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898019) 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, 278423 + ... + 278436.

It is an arithmetic number, because the mean of its divisors is an integer number (1113720).

Almost surely, 2^3898013 is an apocalyptic number.

It is an amenable number.

3898013 is a deficient number, since it is larger than the sum of its proper divisors (556867).

3898013 is an equidigital number, since it uses as much as digits as its factorization.

3898013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556866.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 3898013 is about 1974.3386234382. The cubic root of 3898013 is about 157.3793549934.

The spelling of 3898013 in words is "three million, eight hundred ninety-eight thousand, thirteen".