3898261 has 8 divisors (see below), whose sum is σ = 4009824. Its totient is φ = 3788400.

The previous prime is 3898243. The next prime is 3898291. The reversal of 3898261 is 1628983.

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

It is a cyclic number.

It is not a de Polignac number, because 3898261 - 2⁹ = 3897749 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 3898261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5211 + ... + 5911.

It is an arithmetic number, because the mean of its divisors is an integer number (501228).

Almost surely, 2^3898261 is an apocalyptic number.

It is an amenable number.

3898261 is a deficient number, since it is larger than the sum of its proper divisors (111563).

3898261 is an equidigital number, since it uses as much as digits as its factorization.

3898261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its digits is 20736, while the sum is 37.

The square root of 3898261 is about 1974.4014282815. The cubic root of 3898261 is about 157.3826925274.

The spelling of 3898261 in words is "three million, eight hundred ninety-eight thousand, two hundred sixty-one".