11641623 has 32 divisors (see below), whose sum is σ = 18892800. Its totient is φ = 6228576.

The previous prime is 11641621. The next prime is 11641639. The reversal of 11641623 is 32614611.

11641623 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11641623 - 2¹ = 11641621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11641593 and 11641602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11641621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64948 + ... + 65126.

It is an arithmetic number, because the mean of its divisors is an integer number (590400).

Almost surely, 2^11641623 is an apocalyptic number.

11641623 is a deficient number, since it is larger than the sum of its proper divisors (7251177).

11641623 is a wasteful number, since it uses less digits than its factorization.

11641623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371.

The product of its digits is 864, while the sum is 24.

The square root of 11641623 is about 3411.9822684182. The cubic root of 11641623 is about 226.6406691156.

The spelling of 11641623 in words is "eleven million, six hundred forty-one thousand, six hundred twenty-three".