396753687 has 32 divisors (see below), whose sum is σ = 674976000. Its totient is φ = 227797920.

The previous prime is 396753683. The next prime is 396753689. The reversal of 396753687 is 786357693.

It is not a de Polignac number, because 396753687 - 2² = 396753683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396753683) 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 31 ways as a sum of consecutive naturals, for example, 29512 + ... + 40797.

It is an arithmetic number, because the mean of its divisors is an integer number (21093000).

Almost surely, 2^396753687 is an apocalyptic number.

396753687 is a deficient number, since it is larger than the sum of its proper divisors (278222313).

396753687 is a wasteful number, since it uses less digits than its factorization.

396753687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70348 (or 70342 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The square root of 396753687 is about 19918.6768385854. The cubic root of 396753687 is about 734.8076297890.

The spelling of 396753687 in words is "three hundred ninety-six million, seven hundred fifty-three thousand, six hundred eighty-seven".