11279623 has 2 divisors, whose sum is σ = 11279624. Its totient is φ = 11279622.

The previous prime is 11279603. The next prime is 11279657. The reversal of 11279623 is 32697211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11279623 - 2¹⁷ = 11148551 is a prime.

It is equal to p₇₄₃₇₃₇ and since 11279623 and 743737 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11279603) 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 as a sum of consecutive naturals, namely, 5639811 + 5639812.

It is an arithmetic number, because the mean of its divisors is an integer number (5639812).

Almost surely, 2^11279623 is an apocalyptic number.

11279623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11279623 is an equidigital number, since it uses as much as digits as its factorization.

11279623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 11279623 is about 3358.5149992221. The cubic root of 11279623 is about 224.2667355553.

The spelling of 11279623 in words is "eleven million, two hundred seventy-nine thousand, six hundred twenty-three".