397013684 has 12 divisors (see below), whose sum is σ = 700245504. Its totient is φ = 196943544.

The previous prime is 397013677. The next prime is 397013689. The reversal of 397013684 is 486310793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397013689) 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 3 ways as a sum of consecutive naturals, for example, 390254 + ... + 391269.

It is an arithmetic number, because the mean of its divisors is an integer number (58353792).

Almost surely, 2^397013684 is an apocalyptic number.

It is an amenable number.

397013684 is a deficient number, since it is larger than the sum of its proper divisors (303231820).

397013684 is a wasteful number, since it uses less digits than its factorization.

397013684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781654 (or 781652 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 397013684 is about 19925.2022323489. The cubic root of 397013684 is about 734.9681038806.

The spelling of 397013684 in words is "three hundred ninety-seven million, thirteen thousand, six hundred eighty-four".