3998423 has 8 divisors (see below), whose sum is σ = 4697616. Its totient is φ = 3355200.

The previous prime is 3998419. The next prime is 3998459. The reversal of 3998423 is 3248993.

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 3998423 - 2² = 3998419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998413) 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, 13838 + ... + 14123.

It is an arithmetic number, because the mean of its divisors is an integer number (587202).

Almost surely, 2^3998423 is an apocalyptic number.

3998423 is a deficient number, since it is larger than the sum of its proper divisors (699193).

3998423 is a wasteful number, since it uses less digits than its factorization.

3998423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27985.

The product of its digits is 46656, while the sum is 38.

The square root of 3998423 is about 1999.6057111341. The cubic root of 3998423 is about 158.7192413592.

The spelling of 3998423 in words is "three million, nine hundred ninety-eight thousand, four hundred twenty-three".