3898995 has 8 divisors (see below), whose sum is σ = 6238416. Its totient is φ = 2079456.

The previous prime is 3898991. The next prime is 3899011. The reversal of 3898995 is 5998983.

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

It is not a de Polignac number, because 3898995 - 2² = 3898991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3898991) 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, 129952 + ... + 129981.

It is an arithmetic number, because the mean of its divisors is an integer number (779802).

Almost surely, 2^3898995 is an apocalyptic number.

3898995 is a deficient number, since it is larger than the sum of its proper divisors (2339421).

3898995 is a wasteful number, since it uses less digits than its factorization.

3898995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259941.

The product of its digits is 699840, while the sum is 51.

The square root of 3898995 is about 1974.5872986526. The cubic root of 3898995 is about 157.3925697219.

The spelling of 3898995 in words is "three million, eight hundred ninety-eight thousand, nine hundred ninety-five".