675422991 has 12 divisors (see below), whose sum is σ = 1018029168. Its totient is φ = 430704384.

The previous prime is 675422989. The next prime is 675422999. The reversal of 675422991 is 199224576.

It is not a de Polignac number, because 675422991 - 2¹ = 675422989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675422999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1631250 + ... + 1631663.

It is an arithmetic number, because the mean of its divisors is an integer number (84835764).

Almost surely, 2^675422991 is an apocalyptic number.

675422991 is a deficient number, since it is larger than the sum of its proper divisors (342606177).

675422991 is a wasteful number, since it uses less digits than its factorization.

675422991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262942 (or 3262939 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 675422991 is about 25988.9013042106. The cubic root of 675422991 is about 877.3885177486.

The spelling of 675422991 in words is "six hundred seventy-five million, four hundred twenty-two thousand, nine hundred ninety-one".