11423787 has 16 divisors (see below), whose sum is σ = 15819552. Its totient is φ = 7326720.

The previous prime is 11423761. The next prime is 11423821. The reversal of 11423787 is 78732411.

It is a happy number.

It is not a de Polignac number, because 11423787 - 2¹⁵ = 11391019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11423747) 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 in 15 ways as a sum of consecutive naturals, for example, 10237 + ... + 11297.

It is an arithmetic number, because the mean of its divisors is an integer number (988722).

Almost surely, 2^11423787 is an apocalyptic number.

11423787 is a deficient number, since it is larger than the sum of its proper divisors (4395765).

11423787 is a wasteful number, since it uses less digits than its factorization.

11423787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its digits is 9408, while the sum is 33.

The square root of 11423787 is about 3379.9093183102. The cubic root of 11423787 is about 225.2181390616.

The spelling of 11423787 in words is "eleven million, four hundred twenty-three thousand, seven hundred eighty-seven".