9990677 has 2 divisors, whose sum is σ = 9990678. Its totient is φ = 9990676.

The previous prime is 9990667. The next prime is 9990683. The reversal of 9990677 is 7760999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8375236 + 1615441 = 2894^2 + 1271^2 .

It is an emirp because it is prime and its reverse (7760999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9990677 - 2⁴ = 9990661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9990667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995338 + 4995339.

It is an arithmetic number, because the mean of its divisors is an integer number (4995339).

Almost surely, 2^9990677 is an apocalyptic number.

It is an amenable number.

9990677 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990677 is an equidigital number, since it uses as much as digits as its factorization.

9990677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 9990677 is about 3160.8032207020. The cubic root of 9990677 is about 215.3764955370.

The spelling of 9990677 in words is "nine million, nine hundred ninety thousand, six hundred seventy-seven".