397933345 has 8 divisors (see below), whose sum is σ = 484246080. Its totient is φ = 313862640.

The previous prime is 397933339. The next prime is 397933357. The reversal of 397933345 is 543339793.

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

It is not a de Polignac number, because 397933345 - 2³ = 397933337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 397933295 and 397933304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560115 + ... + 560824.

It is an arithmetic number, because the mean of its divisors is an integer number (60530760).

Almost surely, 2^397933345 is an apocalyptic number.

It is an amenable number.

397933345 is a deficient number, since it is larger than the sum of its proper divisors (86312735).

397933345 is a wasteful number, since it uses less digits than its factorization.

397933345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121015.

The product of its digits is 918540, while the sum is 46.

The square root of 397933345 is about 19948.2667166849. The cubic root of 397933345 is about 735.5351710349.

It can be divided in two parts, 397933 and 345, that added together give a triangular number (398278 = T₈₉₂).

The spelling of 397933345 in words is "three hundred ninety-seven million, nine hundred thirty-three thousand, three hundred forty-five".