396571727 has 18 divisors (see below), whose sum is σ = 423363528. Its totient is φ = 371430312.

The previous prime is 396571687. The next prime is 396571729. The reversal of 396571727 is 727175693.

It is not a de Polignac number, because 396571727 - 2⁶ = 396571663 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 (396571729) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2374598 + ... + 2374764.

It is an arithmetic number, because the mean of its divisors is an integer number (23520196).

Almost surely, 2^396571727 is an apocalyptic number.

396571727 is a deficient number, since it is larger than the sum of its proper divisors (26791801).

396571727 is an equidigital number, since it uses as much as digits as its factorization.

396571727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 257 counting only the distinct ones).

The product of its digits is 555660, while the sum is 47.

The square root of 396571727 is about 19914.1087422963. The cubic root of 396571727 is about 734.6952796113.

The spelling of 396571727 in words is "three hundred ninety-six million, five hundred seventy-one thousand, seven hundred twenty-seven".