675891889 has 4 divisors (see below), whose sum is σ = 685150756. Its totient is φ = 666633024.

The previous prime is 675891857. The next prime is 675891917. The reversal of 675891889 is 988198576.

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 221861025 + 454030864 = 14895^2 + 21308^2 .

It is a cyclic number.

It is not a de Polignac number, because 675891889 - 2⁵ = 675891857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675891289) 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, 4629324 + ... + 4629469.

It is an arithmetic number, because the mean of its divisors is an integer number (171287689).

Almost surely, 2^675891889 is an apocalyptic number.

It is an amenable number.

675891889 is a deficient number, since it is larger than the sum of its proper divisors (9258867).

675891889 is an equidigital number, since it uses as much as digits as its factorization.

675891889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9258866.

The product of its digits is 8709120, while the sum is 61.

The square root of 675891889 is about 25997.9208591764. The cubic root of 675891889 is about 877.5915068681.

The spelling of 675891889 in words is "six hundred seventy-five million, eight hundred ninety-one thousand, eight hundred eighty-nine".