9679512949 has 2 divisors, whose sum is σ = 9679512950. Its totient is φ = 9679512948.

The previous prime is 9679512937. The next prime is 9679512971. The reversal of 9679512949 is 9492159769.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9653062500 + 26450449 = 98250^2 + 5143^2 .

It is a cyclic number.

It is not a de Polignac number, because 9679512949 - 2¹¹ = 9679510901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9679512749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4839756474 + 4839756475.

It is an arithmetic number, because the mean of its divisors is an integer number (4839756475).

Almost surely, 2^9679512949 is an apocalyptic number.

It is an amenable number.

9679512949 is a deficient number, since it is larger than the sum of its proper divisors (1).

9679512949 is an equidigital number, since it uses as much as digits as its factorization.

9679512949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11022480, while the sum is 61.

The square root of 9679512949 is about 98384.5157989813. The cubic root of 9679512949 is about 2131.1687289506.

The spelling of 9679512949 in words is "nine billion, six hundred seventy-nine million, five hundred twelve thousand, nine hundred forty-nine".