396632851 has 4 divisors (see below), whose sum is σ = 401653600. Its totient is φ = 391612104.

The previous prime is 396632839. The next prime is 396632857. The reversal of 396632851 is 158236693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 396632851 - 2⁹ = 396632339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396632798 and 396632807.

It is not an unprimeable number, because it can be changed into a prime (396632857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2510256 + ... + 2510413.

It is an arithmetic number, because the mean of its divisors is an integer number (100413400).

Almost surely, 2^396632851 is an apocalyptic number.

396632851 is a deficient number, since it is larger than the sum of its proper divisors (5020749).

396632851 is an equidigital number, since it uses as much as digits as its factorization.

396632851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020748.

The product of its digits is 233280, while the sum is 43.

The square root of 396632851 is about 19915.6433739912. The cubic root of 396632851 is about 734.7330241135.

The spelling of 396632851 in words is "three hundred ninety-six million, six hundred thirty-two thousand, eight hundred fifty-one".