9672898777 has 2 divisors, whose sum is σ = 9672898778. Its totient is φ = 9672898776.

The previous prime is 9672898751. The next prime is 9672898787. The reversal of 9672898777 is 7778982769.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9413656576 + 259242201 = 97024^2 + 16101^2 .

It is an emirp because it is prime and its reverse (7778982769) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9672898777 - 2¹¹ = 9672896729 is a prime.

It is not a weakly prime, because it can be changed into another prime (9672898717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4836449388 + 4836449389.

It is an arithmetic number, because the mean of its divisors is an integer number (4836449389).

Almost surely, 2^9672898777 is an apocalyptic number.

It is an amenable number.

9672898777 is a deficient number, since it is larger than the sum of its proper divisors (1).

9672898777 is an equidigital number, since it uses as much as digits as its factorization.

9672898777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 149361408, while the sum is 70.

The square root of 9672898777 is about 98350.8961677523. The cubic root of 9672898777 is about 2130.6831973443.

The spelling of 9672898777 in words is "nine billion, six hundred seventy-two million, eight hundred ninety-eight thousand, seven hundred seventy-seven".