9999000677 has 2 divisors, whose sum is σ = 9999000678. Its totient is φ = 9999000676.

The previous prime is 9999000643. The next prime is 9999000689. The reversal of 9999000677 is 7760009999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8722439236 + 1276561441 = 93394^2 + 35729^2 .

It is a cyclic number.

It is not a de Polignac number, because 9999000677 - 2⁸ = 9999000421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999000607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999500338 + 4999500339.

It is an arithmetic number, because the mean of its divisors is an integer number (4999500339).

Almost surely, 2^9999000677 is an apocalyptic number.

It is an amenable number.

9999000677 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999000677 is an equidigital number, since it uses as much as digits as its factorization.

9999000677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1928934, while the sum is 56.

The square root of 9999000677 is about 99995.0032601630. The cubic root of 9999000677 is about 2154.3629217699.

The spelling of 9999000677 in words is "nine billion, nine hundred ninety-nine million, six hundred seventy-seven", and thus it is an aban number.