11678897 has 4 divisors (see below), whose sum is σ = 11799396. Its totient is φ = 11558400.

The previous prime is 11678869. The next prime is 11678899. The reversal of 11678897 is 79887611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2217121 + 9461776 = 1489^2 + 3076^2 .

It is a cyclic number.

It is not a de Polignac number, because 11678897 - 2⁶ = 11678833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11678899) 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, 60104 + ... + 60297.

It is an arithmetic number, because the mean of its divisors is an integer number (2949849).

Almost surely, 2^11678897 is an apocalyptic number.

It is an amenable number.

11678897 is a deficient number, since it is larger than the sum of its proper divisors (120499).

11678897 is an equidigital number, since it uses as much as digits as its factorization.

11678897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120498.

The product of its digits is 169344, while the sum is 47.

The square root of 11678897 is about 3417.4401238354. The cubic root of 11678897 is about 226.8822964866.

The spelling of 11678897 in words is "eleven million, six hundred seventy-eight thousand, eight hundred ninety-seven".