3998361 has 8 divisors (see below), whose sum is σ = 5461344. Its totient is φ = 2600480.

The previous prime is 3998353. The next prime is 3998369. The reversal of 3998361 is 1638993.

It is an interprime number because it is at equal distance from previous prime (3998353) and next prime (3998369).

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 3998361 - 2³ = 3998353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3998369) 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, 16131 + ... + 16376.

It is an arithmetic number, because the mean of its divisors is an integer number (682668).

Almost surely, 2^3998361 is an apocalyptic number.

It is an amenable number.

3998361 is a deficient number, since it is larger than the sum of its proper divisors (1462983).

3998361 is a wasteful number, since it uses less digits than its factorization.

3998361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32551.

The product of its digits is 34992, while the sum is 39.

The square root of 3998361 is about 1999.5902080176. The cubic root of 3998361 is about 158.7184209821.

The spelling of 3998361 in words is "three million, nine hundred ninety-eight thousand, three hundred sixty-one".