397226829 has 8 divisors (see below), whose sum is σ = 529762240. Its totient is φ = 264754656.

The previous prime is 397226821. The next prime is 397226831. The reversal of 397226829 is 928622793.

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

It is not a de Polignac number, because 397226829 - 2³ = 397226821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397226821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1584 + ... + 28230.

It is an arithmetic number, because the mean of its divisors is an integer number (66220280).

Almost surely, 2^397226829 is an apocalyptic number.

It is an amenable number.

397226829 is a deficient number, since it is larger than the sum of its proper divisors (132535411).

397226829 is a wasteful number, since it uses less digits than its factorization.

397226829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31619.

The product of its digits is 653184, while the sum is 48.

The square root of 397226829 is about 19930.5501429338. The cubic root of 397226829 is about 735.0996079544.

The spelling of 397226829 in words is "three hundred ninety-seven million, two hundred twenty-six thousand, eight hundred twenty-nine".