397378473 has 8 divisors (see below), whose sum is σ = 530283936. Its totient is φ = 264696000.

The previous prime is 397378463. The next prime is 397378481. The reversal of 397378473 is 374873793.

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

It is not a de Polignac number, because 397378473 - 2⁹ = 397377961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397378403) 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, 51543 + ... + 58748.

It is an arithmetic number, because the mean of its divisors is an integer number (66285492).

Almost surely, 2^397378473 is an apocalyptic number.

It is an amenable number.

397378473 is a deficient number, since it is larger than the sum of its proper divisors (132905463).

397378473 is a wasteful number, since it uses less digits than its factorization.

397378473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111495.

The product of its digits is 2667168, while the sum is 51.

The square root of 397378473 is about 19934.3540903637. The cubic root of 397378473 is about 735.1931391181.

The spelling of 397378473 in words is "three hundred ninety-seven million, three hundred seventy-eight thousand, four hundred seventy-three".