11907638 has 16 divisors (see below), whose sum is σ = 18399744. Its totient is φ = 5776680.

The previous prime is 11907631. The next prime is 11907641. The reversal of 11907638 is 83670911.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11907598 and 11907607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11907631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11831 + ... + 12797.

It is an arithmetic number, because the mean of its divisors is an integer number (1149984).

Almost surely, 2^11907638 is an apocalyptic number.

11907638 is a deficient number, since it is larger than the sum of its proper divisors (6492106).

11907638 is a wasteful number, since it uses less digits than its factorization.

11907638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 11907638 is about 3450.7445573383. The cubic root of 11907638 is about 228.3539567332.

The spelling of 11907638 in words is "eleven million, nine hundred seven thousand, six hundred thirty-eight".