676493999 has 2 divisors, whose sum is σ = 676494000. Its totient is φ = 676493998.

The previous prime is 676493981. The next prime is 676494001. The reversal of 676493999 is 999394676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 676493999 - 2¹² = 676489903 is a prime.

Together with 676494001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676493959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338246999 + 338247000.

It is an arithmetic number, because the mean of its divisors is an integer number (338247000).

Almost surely, 2^676493999 is an apocalyptic number.

676493999 is a deficient number, since it is larger than the sum of its proper divisors (1).

676493999 is an equidigital number, since it uses as much as digits as its factorization.

676493999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19840464, while the sum is 62.

The square root of 676493999 is about 26009.4982458332. The cubic root of 676493999 is about 877.8520267334.

The spelling of 676493999 in words is "six hundred seventy-six million, four hundred ninety-three thousand, nine hundred ninety-nine".