9979677 has 24 divisors (see below), whose sum is σ = 15460224. Its totient is φ = 6187104.

The previous prime is 9979643. The next prime is 9979681. The reversal of 9979677 is 7769799.

It is not a de Polignac number, because 9979677 - 2⁷ = 9979549 is a prime.

It is an Ulam number.

9979677 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7008 + ... + 8310.

It is an arithmetic number, because the mean of its divisors is an integer number (644176).

Almost surely, 2^9979677 is an apocalyptic number.

It is an amenable number.

9979677 is a deficient number, since it is larger than the sum of its proper divisors (5480547).

9979677 is a wasteful number, since it uses less digits than its factorization.

9979677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1366 counting only the distinct ones).

The product of its digits is 1500282, while the sum is 54.

The square root of 9979677 is about 3159.0626774409. The cubic root of 9979677 is about 215.2974214336.

The spelling of 9979677 in words is "nine million, nine hundred seventy-nine thousand, six hundred seventy-seven".