397210713 has 16 divisors (see below), whose sum is σ = 581729280. Its totient is φ = 239961744.

The previous prime is 397210703. The next prime is 397210717. The reversal of 397210713 is 317012793.

It is a happy number.

It is not a de Polignac number, because 397210713 - 2⁹ = 397210201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (397210717) 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 15 ways as a sum of consecutive naturals, for example, 150181 + ... + 152802.

It is an arithmetic number, because the mean of its divisors is an integer number (36358080).

Almost surely, 2^397210713 is an apocalyptic number.

It is an amenable number.

397210713 is a deficient number, since it is larger than the sum of its proper divisors (184518567).

397210713 is a wasteful number, since it uses less digits than its factorization.

397210713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303028.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 397210713 is about 19930.1458348904. The cubic root of 397210713 is about 735.0896665099.

The spelling of 397210713 in words is "three hundred ninety-seven million, two hundred ten thousand, seven hundred thirteen".