398470223 has 4 divisors (see below), whose sum is σ = 419442360. Its totient is φ = 377498088.

The previous prime is 398470217. The next prime is 398470231. The reversal of 398470223 is 322074893.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398470223 - 2¹² = 398466127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398470213) 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, 10486040 + ... + 10486077.

It is an arithmetic number, because the mean of its divisors is an integer number (104860590).

Almost surely, 2^398470223 is an apocalyptic number.

398470223 is a deficient number, since it is larger than the sum of its proper divisors (20972137).

398470223 is a wasteful number, since it uses less digits than its factorization.

398470223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20972136.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 398470223 is about 19961.7189390092. The cubic root of 398470223 is about 735.8658086468.

The spelling of 398470223 in words is "three hundred ninety-eight million, four hundred seventy thousand, two hundred twenty-three".