398314209 has 8 divisors (see below), whose sum is σ = 531365632. Its totient is φ = 265402800.

The previous prime is 398314187. The next prime is 398314223. The reversal of 398314209 is 902413893.

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

It is not a de Polignac number, because 398314209 - 2⁵ = 398314177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398314109) 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, 28174 + ... + 39879.

It is an arithmetic number, because the mean of its divisors is an integer number (66420704).

Almost surely, 2^398314209 is an apocalyptic number.

It is an amenable number.

398314209 is a deficient number, since it is larger than the sum of its proper divisors (133051423).

398314209 is a wasteful number, since it uses less digits than its factorization.

398314209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70007.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 398314209 is about 19957.8107266303. The cubic root of 398314209 is about 735.7697576764.

The spelling of 398314209 in words is "three hundred ninety-eight million, three hundred fourteen thousand, two hundred nine".