9623638 has 4 divisors (see below), whose sum is σ = 14435460. Its totient is φ = 4811818.

The previous prime is 9623623. The next prime is 9623657. The reversal of 9623638 is 8363269.

It is a happy number.

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

It is a super-2 number, since 2×9623638² = 185228816710088, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9623597 and 9623606.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2405908 + ... + 2405911.

It is an arithmetic number, because the mean of its divisors is an integer number (3608865).

Almost surely, 2^9623638 is an apocalyptic number.

9623638 is a deficient number, since it is larger than the sum of its proper divisors (4811822).

9623638 is a wasteful number, since it uses less digits than its factorization.

9623638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811821.

The product of its digits is 46656, while the sum is 37.

The square root of 9623638 is about 3102.1988975564. The cubic root of 9623638 is about 212.7060092153.

The spelling of 9623638 in words is "nine million, six hundred twenty-three thousand, six hundred thirty-eight".