397209367 has 8 divisors (see below), whose sum is σ = 400170096. Its totient is φ = 394259712.

The previous prime is 397209349. The next prime is 397209389. The reversal of 397209367 is 763902793.

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 397209367 - 2¹¹ = 397207319 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 (397209167) by changing a digit.

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, 77653 + ... + 82609.

It is an arithmetic number, because the mean of its divisors is an integer number (50021262).

Almost surely, 2^397209367 is an apocalyptic number.

397209367 is a deficient number, since it is larger than the sum of its proper divisors (2960729).

397209367 is a wasteful number, since it uses less digits than its factorization.

397209367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537.

The product of its (nonzero) digits is 428652, while the sum is 46.

The square root of 397209367 is about 19930.1120669202. The cubic root of 397209367 is about 735.0888361934.

It can be divided in two parts, 397 and 209367, that added together give a square (209764 = 458²).

The spelling of 397209367 in words is "three hundred ninety-seven million, two hundred nine thousand, three hundred sixty-seven".