11523667 has 4 divisors (see below), whose sum is σ = 12024720. Its totient is φ = 11022616.

The previous prime is 11523653. The next prime is 11523683. The reversal of 11523667 is 76632511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76632511 = 131 ⋅584981.

It is a cyclic number.

It is not a de Polignac number, because 11523667 - 2¹⁹ = 10999379 is a prime.

It is a super-2 number, since 2×11523667² = 265589802253778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11523067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250492 + ... + 250537.

It is an arithmetic number, because the mean of its divisors is an integer number (3006180).

Almost surely, 2^11523667 is an apocalyptic number.

11523667 is a deficient number, since it is larger than the sum of its proper divisors (501053).

11523667 is an equidigital number, since it uses as much as digits as its factorization.

11523667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501052.

The product of its digits is 7560, while the sum is 31.

The square root of 11523667 is about 3394.6527068317. The cubic root of 11523667 is about 225.8726081331.

The spelling of 11523667 in words is "eleven million, five hundred twenty-three thousand, six hundred sixty-seven".