11670865 has 8 divisors (see below), whose sum is σ = 14269608. Its totient is φ = 9160320.

The previous prime is 11670863. The next prime is 11670877. The reversal of 11670865 is 56807611.

It can be written as a sum of positive squares in 4 ways, for example, as 2331729 + 9339136 = 1527^2 + 3056^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11670865 - 2¹ = 11670863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11670865.

It is not an unprimeable number, because it can be changed into a prime (11670863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21756 + ... + 22285.

It is an arithmetic number, because the mean of its divisors is an integer number (1783701).

Almost surely, 2^11670865 is an apocalyptic number.

It is an amenable number.

11670865 is a deficient number, since it is larger than the sum of its proper divisors (2598743).

11670865 is an equidigital number, since it uses as much as digits as its factorization.

11670865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44099.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 11670865 is about 3416.2647731111. The cubic root of 11670865 is about 226.8302728374.

The spelling of 11670865 in words is "eleven million, six hundred seventy thousand, eight hundred sixty-five".