11912017 has 8 divisors (see below), whose sum is σ = 13141800. Its totient is φ = 10727040.

The previous prime is 11911987. The next prime is 11912051. The reversal of 11912017 is 71021911.

11912017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 863041 + 11048976 = 929^2 + 3324^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11912017 - 2¹¹ = 11909969 is a prime.

It is a super-2 number, since 2×11912017² = 283792298016578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11912317) 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, 10642 + ... + 11707.

It is an arithmetic number, because the mean of its divisors is an integer number (1642725).

Almost surely, 2^11912017 is an apocalyptic number.

It is an amenable number.

11912017 is a deficient number, since it is larger than the sum of its proper divisors (1229783).

11912017 is a wasteful number, since it uses less digits than its factorization.

11912017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22403.

The product of its (nonzero) digits is 126, while the sum is 22.

The square root of 11912017 is about 3451.3789997623. The cubic root of 11912017 is about 228.3819454753.

Adding to 11912017 its reverse (71021911), we get a palindrome (82933928).

The spelling of 11912017 in words is "eleven million, nine hundred twelve thousand, seventeen".