11948623 has 4 divisors (see below), whose sum is σ = 11977560. Its totient is φ = 11919688.

The previous prime is 11948617. The next prime is 11948639. The reversal of 11948623 is 32684911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11948623 is a prime.

It is a super-2 number, since 2×11948623² = 285539183192258, 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 (11948653) 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 3 ways as a sum of consecutive naturals, for example, 13840 + ... + 14677.

It is an arithmetic number, because the mean of its divisors is an integer number (2994390).

Almost surely, 2^11948623 is an apocalyptic number.

11948623 is a deficient number, since it is larger than the sum of its proper divisors (28937).

11948623 is an equidigital number, since it uses as much as digits as its factorization.

11948623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28936.

The product of its digits is 10368, while the sum is 34.

The square root of 11948623 is about 3456.6780295538. The cubic root of 11948623 is about 228.6156478622.

The spelling of 11948623 in words is "eleven million, nine hundred forty-eight thousand, six hundred twenty-three".