397193357 has 8 divisors (see below), whose sum is σ = 434285280. Its totient is φ = 360265360.

The previous prime is 397193351. The next prime is 397193393. The reversal of 397193357 is 753391793.

It is a happy number.

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 397193357 - 2⁴ = 397193341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397193351) 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, 35882 + ... + 45627.

It is an arithmetic number, because the mean of its divisors is an integer number (54285660).

Almost surely, 2^397193357 is an apocalyptic number.

It is an amenable number.

397193357 is a deficient number, since it is larger than the sum of its proper divisors (37091923).

397193357 is a wasteful number, since it uses less digits than its factorization.

397193357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81963.

The product of its digits is 535815, while the sum is 47.

The square root of 397193357 is about 19929.7104093361. The cubic root of 397193357 is about 735.0789598483.

The spelling of 397193357 in words is "three hundred ninety-seven million, one hundred ninety-three thousand, three hundred fifty-seven".