11671969 has 8 divisors (see below), whose sum is σ = 11864160. Its totient is φ = 11481600.

The previous prime is 11671967. The next prime is 11671973. The reversal of 11671969 is 96917611.

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 11671969 - 2¹ = 11671967 is a prime.

It is a super-2 number, since 2×11671969² = 272469720673922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11671967) 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, 17889 + ... + 18529.

It is an arithmetic number, because the mean of its divisors is an integer number (1483020).

Almost surely, 2^11671969 is an apocalyptic number.

It is an amenable number.

11671969 is a deficient number, since it is larger than the sum of its proper divisors (192191).

11671969 is a wasteful number, since it uses less digits than its factorization.

11671969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911.

The product of its digits is 20412, while the sum is 40.

The square root of 11671969 is about 3416.4263492720. The cubic root of 11671969 is about 226.8374249130.

It can be divided in two parts, 1167 and 1969, that added together give a square (3136 = 56²).

The spelling of 11671969 in words is "eleven million, six hundred seventy-one thousand, nine hundred sixty-nine".