11661694 has 16 divisors (see below), whose sum is σ = 20205936. Its totient is φ = 4988800.

The previous prime is 11661691. The next prime is 11661701. The reversal of 11661694 is 49616611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661691) 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, 15217 + ... + 15964.

It is an arithmetic number, because the mean of its divisors is an integer number (1262871).

Almost surely, 2^11661694 is an apocalyptic number.

11661694 is a deficient number, since it is larger than the sum of its proper divisors (8544242).

11661694 is a wasteful number, since it uses less digits than its factorization.

11661694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31211.

The product of its digits is 7776, while the sum is 34.

The square root of 11661694 is about 3414.9222538734. The cubic root of 11661694 is about 226.7708426363.

The spelling of 11661694 in words is "eleven million, six hundred sixty-one thousand, six hundred ninety-four".