6328672949 has 2 divisors, whose sum is σ = 6328672950. Its totient is φ = 6328672948.

The previous prime is 6328672921. The next prime is 6328672951. The reversal of 6328672949 is 9492768236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4287892324 + 2040780625 = 65482^2 + 45175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6328672949 is a prime.

Together with 6328672951, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6328672894 and 6328672903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6328672849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3164336474 + 3164336475.

It is an arithmetic number, because the mean of its divisors is an integer number (3164336475).

Almost surely, 2^6328672949 is an apocalyptic number.

It is an amenable number.

6328672949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6328672949 is an equidigital number, since it uses as much as digits as its factorization.

6328672949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 56.

The square root of 6328672949 is about 79552.9568840782. The cubic root of 6328672949 is about 1849.7124412071.

The spelling of 6328672949 in words is "six billion, three hundred twenty-eight million, six hundred seventy-two thousand, nine hundred forty-nine".