11423665 has 16 divisors (see below), whose sum is σ = 15036480. Its totient is φ = 8262720.

The previous prime is 11423647. The next prime is 11423669. The reversal of 11423665 is 56632411.

It is not a de Polignac number, because 11423665 - 2⁷ = 11423537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11423669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12142 + ... + 13048.

It is an arithmetic number, because the mean of its divisors is an integer number (939780).

Almost surely, 2^11423665 is an apocalyptic number.

It is an amenable number.

11423665 is a deficient number, since it is larger than the sum of its proper divisors (3612815).

11423665 is a wasteful number, since it uses less digits than its factorization.

11423665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152.

The product of its digits is 4320, while the sum is 28.

The square root of 11423665 is about 3379.8912704405. The cubic root of 11423665 is about 225.2173373219.

The spelling of 11423665 in words is "eleven million, four hundred twenty-three thousand, six hundred sixty-five".