11671738 has 16 divisors (see below), whose sum is σ = 19847520. Its totient is φ = 5103216.

The previous prime is 11671733. The next prime is 11671739. The reversal of 11671738 is 83717611.

It is not an unprimeable number, because it can be changed into a prime (11671733) 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 7 ways as a sum of consecutive naturals, for example, 11320 + ... + 12307.

It is an arithmetic number, because the mean of its divisors is an integer number (1240470).

Almost surely, 2^11671738 is an apocalyptic number.

11671738 is a deficient number, since it is larger than the sum of its proper divisors (8175782).

11671738 is a wasteful number, since it uses less digits than its factorization.

11671738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23661.

The product of its digits is 7056, while the sum is 34.

The square root of 11671738 is about 3416.3925418488. The cubic root of 11671738 is about 226.8359284562.

The spelling of 11671738 in words is "eleven million, six hundred seventy-one thousand, seven hundred thirty-eight".