9999634 has 8 divisors (see below), whose sum is σ = 15039180. Its totient is φ = 4986576.

The previous prime is 9999601. The next prime is 9999637. The reversal of 9999634 is 4369999.

It can be written as a sum of positive squares in 2 ways, for example, as 9272025 + 727609 = 3045^2 + 853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (9999637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5649 + ... + 7204.

Almost surely, 2^9999634 is an apocalyptic number.

9999634 is a deficient number, since it is larger than the sum of its proper divisors (5039546).

9999634 is a wasteful number, since it uses less digits than its factorization.

9999634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13244.

The product of its digits is 472392, while the sum is 49.

The square root of 9999634 is about 3162.2197899577. The cubic root of 9999634 is about 215.4408405608.

The spelling of 9999634 in words is "nine million, nine hundred ninety-nine thousand, six hundred thirty-four".