11949717 has 16 divisors (see below), whose sum is σ = 17443328. Its totient is φ = 7231680.

The previous prime is 11949713. The next prime is 11949731. The reversal of 11949717 is 71794911.

It is not a de Polignac number, because 11949717 - 2² = 11949713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11949713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133 + ... + 4890.

It is an arithmetic number, because the mean of its divisors is an integer number (1090208).

Almost surely, 2^11949717 is an apocalyptic number.

It is an amenable number.

11949717 is a deficient number, since it is larger than the sum of its proper divisors (5493611).

11949717 is a wasteful number, since it uses less digits than its factorization.

11949717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100.

The product of its digits is 15876, while the sum is 39.

The square root of 11949717 is about 3456.8362703489. The cubic root of 11949717 is about 228.6226248973.

The spelling of 11949717 in words is "eleven million, nine hundred forty-nine thousand, seven hundred seventeen".