398473223 has 4 divisors (see below), whose sum is σ = 400918008. Its totient is φ = 396028440.

The previous prime is 398473211. The next prime is 398473247. The reversal of 398473223 is 322374893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322374893 = 17 ⋅18963229.

It is a cyclic number.

It is not a de Polignac number, because 398473223 - 2¹⁶ = 398407687 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 (398472223) 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, 1222148 + ... + 1222473.

It is an arithmetic number, because the mean of its divisors is an integer number (100229502).

Almost surely, 2^398473223 is an apocalyptic number.

398473223 is a deficient number, since it is larger than the sum of its proper divisors (2444785).

398473223 is a wasteful number, since it uses less digits than its factorization.

398473223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444784.

The product of its digits is 217728, while the sum is 41.

The square root of 398473223 is about 19961.7940826971. The cubic root of 398473223 is about 735.8676553694.

The spelling of 398473223 in words is "three hundred ninety-eight million, four hundred seventy-three thousand, two hundred twenty-three".