675546993 has 24 divisors (see below), whose sum is σ = 1100069600. Its totient is φ = 409420440.

The previous prime is 675546983. The next prime is 675547013. The reversal of 675546993 is 399645576.

675546993 is a `hidden beast` number, since 6 + 7 + 5 + 546 + 9 + 93 = 666.

It is not a de Polignac number, because 675546993 - 2⁶ = 675546929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675546913) 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 23 ways as a sum of consecutive naturals, for example, 100123 + ... + 106656.

Almost surely, 2^675546993 is an apocalyptic number.

It is an amenable number.

675546993 is a deficient number, since it is larger than the sum of its proper divisors (424522607).

675546993 is a wasteful number, since it uses less digits than its factorization.

675546993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206810 (or 206793 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The square root of 675546993 is about 25991.2868669483. The cubic root of 675546993 is about 877.4422081890.

It can be divided in two parts, 67554 and 6993, that added together give a palindrome (74547).

The spelling of 675546993 in words is "six hundred seventy-five million, five hundred forty-six thousand, nine hundred ninety-three".