676726993 has 8 divisors (see below), whose sum is σ = 704061440. Its totient is φ = 649736640.

The previous prime is 676726987. The next prime is 676727027. The reversal of 676726993 is 399627676.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676726993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676726903) 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 7 ways as a sum of consecutive naturals, for example, 82008 + ... + 89881.

It is an arithmetic number, because the mean of its divisors is an integer number (88007680).

Almost surely, 2^676726993 is an apocalyptic number.

It is an amenable number.

676726993 is a deficient number, since it is larger than the sum of its proper divisors (27334447).

676726993 is a wasteful number, since it uses less digits than its factorization.

676726993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172047.

The product of its digits is 5143824, while the sum is 55.

The square root of 676726993 is about 26013.9768778247. The cubic root of 676726993 is about 877.9527966729.

The spelling of 676726993 in words is "six hundred seventy-six million, seven hundred twenty-six thousand, nine hundred ninety-three".