3898641 has 8 divisors (see below), whose sum is σ = 5213824. Its totient is φ = 2591280.

The previous prime is 3898639. The next prime is 3898651. The reversal of 3898641 is 1468983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3898641 - 2¹ = 3898639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3898641.

It is not an unprimeable number, because it can be changed into a prime (3898651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (651728).

Almost surely, 2^3898641 is an apocalyptic number.

It is an amenable number.

3898641 is a deficient number, since it is larger than the sum of its proper divisors (1315183).

3898641 is a wasteful number, since it uses less digits than its factorization.

3898641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911.

The product of its digits is 41472, while the sum is 39.

The square root of 3898641 is about 1974.4976576335. The cubic root of 3898641 is about 157.3878062161.

The spelling of 3898641 in words is "three million, eight hundred ninety-eight thousand, six hundred forty-one".