3998698 has 8 divisors (see below), whose sum is σ = 6543360. Its totient is φ = 1817580.

The previous prime is 3998693. The next prime is 3998707. The reversal of 3998698 is 8968993.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3998693) 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, 90858 + ... + 90901.

It is an arithmetic number, because the mean of its divisors is an integer number (817920).

Almost surely, 2^3998698 is an apocalyptic number.

3998698 is a deficient number, since it is larger than the sum of its proper divisors (2544662).

3998698 is a wasteful number, since it uses less digits than its factorization.

3998698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181772.

The product of its digits is 839808, while the sum is 52.

The square root of 3998698 is about 1999.6744735081. The cubic root of 3998698 is about 158.7228800263.

The spelling of 3998698 in words is "three million, nine hundred ninety-eight thousand, six hundred ninety-eight".