10993638 has 16 divisors (see below), whose sum is σ = 22499136. Its totient is φ = 3579240.

The previous prime is 10993637. The next prime is 10993669. The reversal of 10993638 is 83639901.

It is a junction number, because it is equal to n+sod(n) for n = 10993596 and 10993605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10993637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21048 + ... + 21563.

It is an arithmetic number, because the mean of its divisors is an integer number (1406196).

Almost surely, 2^10993638 is an apocalyptic number.

10993638 is an abundant number, since it is smaller than the sum of its proper divisors (11505498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10993638 is a wasteful number, since it uses less digits than its factorization.

10993638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42659.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 10993638 is about 3315.6655440499. The cubic root of 10993638 is about 222.3551251480.

The spelling of 10993638 in words is "ten million, nine hundred ninety-three thousand, six hundred thirty-eight".