564447399 has 8 divisors (see below), whose sum is σ = 754563072. Its totient is φ = 375315000.

The previous prime is 564447391. The next prime is 564447407. The reversal of 564447399 is 993744465.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (564447391) and next prime (564447407).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 564447399 - 2³ = 564447391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564447391) 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 7 ways as a sum of consecutive naturals, for example, 244477 + ... + 246774.

It is an arithmetic number, because the mean of its divisors is an integer number (94320384).

Almost surely, 2^564447399 is an apocalyptic number.

564447399 is a deficient number, since it is larger than the sum of its proper divisors (190115673).

564447399 is a wasteful number, since it uses less digits than its factorization.

564447399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491637.

The product of its digits is 3265920, while the sum is 51.

The square root of 564447399 is about 23758.1017549803. The cubic root of 564447399 is about 826.4333327503.

The spelling of 564447399 in words is "five hundred sixty-four million, four hundred forty-seven thousand, three hundred ninety-nine".