396273643 has 2 divisors, whose sum is σ = 396273644. Its totient is φ = 396273642.

The previous prime is 396273641. The next prime is 396273659. The reversal of 396273643 is 346372693.

It is a weak prime.

396273643 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 396273643 - 2¹ = 396273641 is a prime.

Together with 396273641, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 396273643.

It is not a weakly prime, because it can be changed into another prime (396273641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198136821 + 198136822.

It is an arithmetic number, because the mean of its divisors is an integer number (198136822).

Almost surely, 2^396273643 is an apocalyptic number.

396273643 is a deficient number, since it is larger than the sum of its proper divisors (1).

396273643 is an equidigital number, since it uses as much as digits as its factorization.

396273643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 43.

The square root of 396273643 is about 19906.6230938349. The cubic root of 396273643 is about 734.5111550368.

The spelling of 396273643 in words is "three hundred ninety-six million, two hundred seventy-three thousand, six hundred forty-three".