11672861 has 4 divisors (see below), whose sum is σ = 11680224. Its totient is φ = 11665500.

The previous prime is 11672851. The next prime is 11672893. The reversal of 11672861 is 16827611.

It is a happy number.

11672861 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16827611 = 179 ⋅94009.

It is a cyclic number.

It is not a de Polignac number, because 11672861 - 2¹⁰ = 11671837 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 (11672831) 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, 215 + ... + 4836.

It is an arithmetic number, because the mean of its divisors is an integer number (2920056).

Almost surely, 2^11672861 is an apocalyptic number.

It is an amenable number.

11672861 is a deficient number, since it is larger than the sum of its proper divisors (7363).

11672861 is an equidigital number, since it uses as much as digits as its factorization.

11672861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7362.

The product of its digits is 4032, while the sum is 32.

The square root of 11672861 is about 3416.5568925455. The cubic root of 11672861 is about 226.8432032533.

The spelling of 11672861 in words is "eleven million, six hundred seventy-two thousand, eight hundred sixty-one".