9979622 has 4 divisors (see below), whose sum is σ = 14969436. Its totient is φ = 4989810.

The previous prime is 9979621. The next prime is 9979639. The reversal of 9979622 is 2269799.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979621) 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 as a sum of consecutive naturals, namely, 2494904 + ... + 2494907.

It is an arithmetic number, because the mean of its divisors is an integer number (3742359).

Almost surely, 2^9979622 is an apocalyptic number.

9979622 is a deficient number, since it is larger than the sum of its proper divisors (4989814).

9979622 is a wasteful number, since it uses less digits than its factorization.

9979622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989813.

The product of its digits is 122472, while the sum is 44.

The square root of 9979622 is about 3159.0539723151. The cubic root of 9979622 is about 215.2970259171.

It can be divided in two parts, 9979 and 622, that added together give a palindrome (10601).

The spelling of 9979622 in words is "nine million, nine hundred seventy-nine thousand, six hundred twenty-two".