11307638 has 4 divisors (see below), whose sum is σ = 16961460. Its totient is φ = 5653818.

The previous prime is 11307629. The next prime is 11307691. The reversal of 11307638 is 83670311.

11307638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83670311 = 17 ⋅4921783.

It is a self number, because there is not a number n which added to its sum of digits gives 11307638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2826908 + ... + 2826911.

It is an arithmetic number, because the mean of its divisors is an integer number (4240365).

Almost surely, 2^11307638 is an apocalyptic number.

11307638 is a deficient number, since it is larger than the sum of its proper divisors (5653822).

11307638 is an equidigital number, since it uses as much as digits as its factorization.

11307638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5653821.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 11307638 is about 3362.6831548631. The cubic root of 11307638 is about 224.4522511599.

Adding to 11307638 its reverse (83670311), we get a palindrome (94977949).

The spelling of 11307638 in words is "eleven million, three hundred seven thousand, six hundred thirty-eight".