11648623 has 8 divisors (see below), whose sum is σ = 13584800. Its totient is φ = 9984240.

The previous prime is 11648597. The next prime is 11648641. The reversal of 11648623 is 32684611.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11648623 is a prime.

It is a super-2 number, since 2×11648623² = 271380835592258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11648023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16638 + ... + 17323.

It is an arithmetic number, because the mean of its divisors is an integer number (1698100).

Almost surely, 2^11648623 is an apocalyptic number.

11648623 is a deficient number, since it is larger than the sum of its proper divisors (1936177).

11648623 is an frugal number, since it uses more digits than its factorization.

11648623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33982 (or 33968 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 11648623 is about 3413.0079109196. The cubic root of 11648623 is about 226.6860856585.

The spelling of 11648623 in words is "eleven million, six hundred forty-eight thousand, six hundred twenty-three".