675844399 has 4 divisors (see below), whose sum is σ = 676093000. Its totient is φ = 675595800.

The previous prime is 675844387. The next prime is 675844453. The reversal of 675844399 is 993448576.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675844399 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 (675844199) 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, 120177 + ... + 125674.

It is an arithmetic number, because the mean of its divisors is an integer number (169023250).

Almost surely, 2^675844399 is an apocalyptic number.

675844399 is a deficient number, since it is larger than the sum of its proper divisors (248601).

675844399 is a wasteful number, since it uses less digits than its factorization.

675844399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248600.

The product of its digits is 6531840, while the sum is 55.

The square root of 675844399 is about 25997.0075008644. The cubic root of 675844399 is about 877.5709523990.

The spelling of 675844399 in words is "six hundred seventy-five million, eight hundred forty-four thousand, three hundred ninety-nine".