11917634 has 32 divisors (see below), whose sum is σ = 19595520. Its totient is φ = 5420800.

The previous prime is 11917627. The next prime is 11917639. The reversal of 11917634 is 43671911.

11917634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11917634.

It is not an unprimeable number, because it can be changed into a prime (11917639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133862 + ... + 133950.

It is an arithmetic number, because the mean of its divisors is an integer number (612360).

Almost surely, 2^11917634 is an apocalyptic number.

11917634 is a deficient number, since it is larger than the sum of its proper divisors (7677886).

11917634 is a wasteful number, since it uses less digits than its factorization.

11917634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226.

The product of its digits is 4536, while the sum is 32.

The square root of 11917634 is about 3452.1926365717. The cubic root of 11917634 is about 228.4178369566.

The spelling of 11917634 in words is "eleven million, nine hundred seventeen thousand, six hundred thirty-four".