9971626 has 16 divisors (see below), whose sum is σ = 17147520. Its totient is φ = 4260240.

The previous prime is 9971603. The next prime is 9971641. The reversal of 9971626 is 6261799.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4531 + ... + 6361.

It is an arithmetic number, because the mean of its divisors is an integer number (1071720).

Almost surely, 2^9971626 is an apocalyptic number.

9971626 is a deficient number, since it is larger than the sum of its proper divisors (7175894).

9971626 is a wasteful number, since it uses less digits than its factorization.

9971626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229.

The product of its digits is 40824, while the sum is 40.

The square root of 9971626 is about 3157.7881499556. The cubic root of 9971626 is about 215.2395095435.

The spelling of 9971626 in words is "nine million, nine hundred seventy-one thousand, six hundred twenty-six".