11307621 has 12 divisors (see below), whose sum is σ = 16326528. Its totient is φ = 6958224.

The previous prime is 11307599. The next prime is 11307629. The reversal of 11307621 is 12670311.

It is not a de Polignac number, because 11307621 - 2⁶ = 11307557 is a prime.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11307629) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 10645 + ... + 11658.

It is an arithmetic number, because the mean of its divisors is an integer number (1360544).

Almost surely, 2^11307621 is an apocalyptic number.

It is an amenable number.

11307621 is a deficient number, since it is larger than the sum of its proper divisors (5018907).

11307621 is a wasteful number, since it uses less digits than its factorization.

11307621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22332 (or 22319 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 11307621 is about 3362.6806271188. The cubic root of 11307621 is about 224.4521386787.

Adding to 11307621 its reverse (12670311), we get a palindrome (23977932).

The spelling of 11307621 in words is "eleven million, three hundred seven thousand, six hundred twenty-one".