11687601 has 4 divisors (see below), whose sum is σ = 15583472. Its totient is φ = 7791732.

The previous prime is 11687591. The next prime is 11687629. The reversal of 11687601 is 10678611.

It is a happy number.

11687601 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10678611 = 3 ⋅3559537.

It is not a de Polignac number, because 11687601 - 2¹⁴ = 11671217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11687801) 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, 1947931 + ... + 1947936.

It is an arithmetic number, because the mean of its divisors is an integer number (3895868).

Almost surely, 2^11687601 is an apocalyptic number.

It is an amenable number.

11687601 is a deficient number, since it is larger than the sum of its proper divisors (3895871).

11687601 is an equidigital number, since it uses as much as digits as its factorization.

11687601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895870.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 11687601 is about 3418.7133544654. The cubic root of 11687601 is about 226.9386457899.

The spelling of 11687601 in words is "eleven million, six hundred eighty-seven thousand, six hundred one".