9998677 has 6 divisors (see below), whose sum is σ = 10780098. Its totient is φ = 9219024.

The previous prime is 9998641. The next prime is 9998689. The reversal of 9998677 is 7768999.

It can be written as a sum of positive squares in 3 ways, for example, as 2954961 + 7043716 = 1719^2 + 2654^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9998677 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10963 + ... + 11839.

It is an arithmetic number, because the mean of its divisors is an integer number (1796683).

Almost surely, 2^9998677 is an apocalyptic number.

It is an amenable number.

9998677 is a deficient number, since it is larger than the sum of its proper divisors (781421).

9998677 is an frugal number, since it uses more digits than its factorization.

9998677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767 (or 890 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 55.

The square root of 9998677 is about 3162.0684685819. The cubic root of 9998677 is about 215.4339675272.

The spelling of 9998677 in words is "nine million, nine hundred ninety-eight thousand, six hundred seventy-seven".