9979654 has 16 divisors (see below), whose sum is σ = 16161120. Its totient is φ = 4607680.

The previous prime is 9979643. The next prime is 9979681. The reversal of 9979654 is 4569799.

It is a junction number, because it is equal to n+sod(n) for n = 9979598 and 9979607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2407 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (1010070).

Almost surely, 2^9979654 is an apocalyptic number.

9979654 is a deficient number, since it is larger than the sum of its proper divisors (6181466).

9979654 is a wasteful number, since it uses less digits than its factorization.

9979654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535.

The product of its digits is 612360, while the sum is 49.

The square root of 9979654 is about 3159.0590371185. The cubic root of 9979654 is about 215.2972560360.

The spelling of 9979654 in words is "nine million, nine hundred seventy-nine thousand, six hundred fifty-four".