11678711 has 24 divisors (see below), whose sum is σ = 14319504. Its totient is φ = 9411840.

The previous prime is 11678707. The next prime is 11678743. The reversal of 11678711 is 11787611.

It is not a de Polignac number, because 11678711 - 2² = 11678707 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 (11678761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67421 + ... + 67593.

It is an arithmetic number, because the mean of its divisors is an integer number (596646).

Almost surely, 2^11678711 is an apocalyptic number.

11678711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11678711 is a deficient number, since it is larger than the sum of its proper divisors (2640793).

11678711 is a wasteful number, since it uses less digits than its factorization.

11678711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 220 counting only the distinct ones).

The product of its digits is 2352, while the sum is 32.

The square root of 11678711 is about 3417.4129103753. The cubic root of 11678711 is about 226.8810920255.

Subtracting 11678711 from its reverse (11787611), we obtain a square (108900 = 330²).

The spelling of 11678711 in words is "eleven million, six hundred seventy-eight thousand, seven hundred eleven".