398606 has 8 divisors (see below), whose sum is σ = 643944. Its totient is φ = 183960.

The previous prime is 398591. The next prime is 398609. The reversal of 398606 is 606893.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398609) 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, 7640 + ... + 7691.

It is an arithmetic number, because the mean of its divisors is an integer number (80493).

2³⁹⁸⁶⁰⁶ is an apocalyptic number.

398606 is a deficient number, since it is larger than the sum of its proper divisors (245338).

398606 is a wasteful number, since it uses less digits than its factorization.

398606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15346.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 398606 is about 631.3525164280. The cubic root of 398606 is about 73.5949380183.

The spelling of 398606 in words is "three hundred ninety-eight thousand, six hundred six".