3898669 has 4 divisors (see below), whose sum is σ = 3924640. Its totient is φ = 3872700.

The previous prime is 3898651. The next prime is 3898717. The reversal of 3898669 is 9668983.

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: 9668983 = 151 ⋅64033.

It is a cyclic number.

It is not a de Polignac number, because 3898669 - 2⁵ = 3898637 is a prime.

It is a super-2 number, since 2×3898669² = 30399239943122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898619) 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, 12759 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (981160).

Almost surely, 2^3898669 is an apocalyptic number.

It is an amenable number.

3898669 is a deficient number, since it is larger than the sum of its proper divisors (25971).

3898669 is a wasteful number, since it uses less digits than its factorization.

3898669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25970.

The product of its digits is 559872, while the sum is 49.

The square root of 3898669 is about 1974.5047480318. The cubic root of 3898669 is about 157.3881830011.

The spelling of 3898669 in words is "three million, eight hundred ninety-eight thousand, six hundred sixty-nine".