675640943 has 8 divisors (see below), whose sum is σ = 684801600. Its totient is φ = 666495648.

The previous prime is 675640937. The next prime is 675640957. The reversal of 675640943 is 349046576.

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

It is a cyclic number.

It is not a de Polignac number, because 675640943 - 2⁶ = 675640879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 675640894 and 675640903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675640993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105353 + ... + 111581.

It is an arithmetic number, because the mean of its divisors is an integer number (85600200).

Almost surely, 2^675640943 is an apocalyptic number.

675640943 is a deficient number, since it is larger than the sum of its proper divisors (9160657).

675640943 is a wasteful number, since it uses less digits than its factorization.

675640943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 675640943 is about 25993.0941405597. The cubic root of 675640943 is about 877.4828823267.

The spelling of 675640943 in words is "six hundred seventy-five million, six hundred forty thousand, nine hundred forty-three".