396267589 has 4 divisors (see below), whose sum is σ = 396833580. Its totient is φ = 395701600.

The previous prime is 396267587. The next prime is 396267593. The reversal of 396267589 is 985762693.

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

It can be written as a sum of positive squares in 2 ways, for example, as 345030625 + 51236964 = 18575^2 + 7158^2 .

It is a cyclic number.

It is not a de Polignac number, because 396267589 - 2¹ = 396267587 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 (396267587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281944 + ... + 283345.

It is an arithmetic number, because the mean of its divisors is an integer number (99208395).

Almost surely, 2^396267589 is an apocalyptic number.

It is an amenable number.

396267589 is a deficient number, since it is larger than the sum of its proper divisors (565991).

396267589 is an equidigital number, since it uses as much as digits as its factorization.

396267589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565990.

The product of its digits is 4898880, while the sum is 55.

The square root of 396267589 is about 19906.4710333097. The cubic root of 396267589 is about 734.5074145633.

The spelling of 396267589 in words is "three hundred ninety-six million, two hundred sixty-seven thousand, five hundred eighty-nine".