3898605 has 8 divisors (see below), whose sum is σ = 6237792. Its totient is φ = 2079248.

The previous prime is 3898597. The next prime is 3898619. The reversal of 3898605 is 5068983.

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 3898605 - 2³ = 3898597 is a prime.

It is a super-3 number, since 3×3898605³ (a number of 21 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129939 + ... + 129968.

It is an arithmetic number, because the mean of its divisors is an integer number (779724).

Almost surely, 2^3898605 is an apocalyptic number.

It is an amenable number.

3898605 is a deficient number, since it is larger than the sum of its proper divisors (2339187).

3898605 is a wasteful number, since it uses less digits than its factorization.

3898605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259915.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 3898605 is about 1974.4885413696. The cubic root of 3898605 is about 157.3873217756.

The spelling of 3898605 in words is "three million, eight hundred ninety-eight thousand, six hundred five".