3898705 has 8 divisors (see below), whose sum is σ = 4924800. Its totient is φ = 2954736.

The previous prime is 3898651. The next prime is 3898717. The reversal of 3898705 is 5078983.

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 3898705 - 2¹¹ = 3896657 is a prime.

It is an alternating number because its digits alternate between odd and even.

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, 20425 + ... + 20614.

It is an arithmetic number, because the mean of its divisors is an integer number (615600).

Almost surely, 2^3898705 is an apocalyptic number.

It is an amenable number.

3898705 is a deficient number, since it is larger than the sum of its proper divisors (1026095).

3898705 is a wasteful number, since it uses less digits than its factorization.

3898705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41063.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 3898705 is about 1974.5138642208. The cubic root of 3898705 is about 157.3886674362.

The spelling of 3898705 in words is "three million, eight hundred ninety-eight thousand, seven hundred five".