11845687 has 4 divisors (see below), whose sum is σ = 13537936. Its totient is φ = 10153440.

The previous prime is 11845663. The next prime is 11845693. The reversal of 11845687 is 78654811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78654811 = 197 ⋅399263.

It is a cyclic number.

It is not a de Polignac number, because 11845687 - 2¹⁵ = 11812919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11845657) 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 3 ways as a sum of consecutive naturals, for example, 846114 + ... + 846127.

It is an arithmetic number, because the mean of its divisors is an integer number (3384484).

Almost surely, 2^11845687 is an apocalyptic number.

11845687 is a deficient number, since it is larger than the sum of its proper divisors (1692249).

11845687 is an equidigital number, since it uses as much as digits as its factorization.

11845687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692248.

The product of its digits is 53760, while the sum is 40.

The square root of 11845687 is about 3441.7563830114. The cubic root of 11845687 is about 227.9572544776.

The spelling of 11845687 in words is "eleven million, eight hundred forty-five thousand, six hundred eighty-seven".