11709957 has 16 divisors (see below), whose sum is σ = 18893952. Its totient is φ = 6297600.

The previous prime is 11709917. The next prime is 11709961. The reversal of 11709957 is 75990711.

It is not a de Polignac number, because 11709957 - 2⁸ = 11709701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11709917) 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 15 ways as a sum of consecutive naturals, for example, 16044 + ... + 16757.

It is an arithmetic number, because the mean of its divisors is an integer number (1180872).

Almost surely, 2^11709957 is an apocalyptic number.

11709957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11709957 is a deficient number, since it is larger than the sum of its proper divisors (7183995).

11709957 is a wasteful number, since it uses less digits than its factorization.

11709957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32828.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 11709957 is about 3421.9814435499. The cubic root of 11709957 is about 227.0832494309.

The spelling of 11709957 in words is "eleven million, seven hundred nine thousand, nine hundred fifty-seven".