397225223 has 8 divisors (see below), whose sum is σ = 401599296. Its totient is φ = 392860000.

The previous prime is 397225219. The next prime is 397225237. The reversal of 397225223 is 322522793.

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 397225223 - 2² = 397225219 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 (397225273) 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, 129890 + ... + 132912.

It is an arithmetic number, because the mean of its divisors is an integer number (50199912).

Almost surely, 2^397225223 is an apocalyptic number.

397225223 is a deficient number, since it is larger than the sum of its proper divisors (4374073).

397225223 is a wasteful number, since it uses less digits than its factorization.

397225223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425.

The product of its digits is 45360, while the sum is 35.

The square root of 397225223 is about 19930.5098529867. The cubic root of 397225223 is about 735.0986172765.

The spelling of 397225223 in words is "three hundred ninety-seven million, two hundred twenty-five thousand, two hundred twenty-three".