675891890 has 8 divisors (see below), whose sum is σ = 1216605420. Its totient is φ = 270356752.

The previous prime is 675891857. The next prime is 675891917. The reversal of 675891890 is 98198576.

It can be written as a sum of positive squares in 2 ways, for example, as 672209329 + 3682561 = 25927^2 + 1919^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33794585 + ... + 33794604.

Almost surely, 2^675891890 is an apocalyptic number.

675891890 is a deficient number, since it is larger than the sum of its proper divisors (540713530).

675891890 is a wasteful number, since it uses less digits than its factorization.

675891890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67589196.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 675891890 is about 25997.9208784087. The cubic root of 675891890 is about 877.5915073009.

The spelling of 675891890 in words is "six hundred seventy-five million, eight hundred ninety-one thousand, eight hundred ninety".