11172983 has 4 divisors (see below), whose sum is σ = 11383848. Its totient is φ = 10962120.

The previous prime is 11172979. The next prime is 11173003. The reversal of 11172983 is 38927111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38927111 = 349 ⋅111539.

It is a cyclic number.

It is not a de Polignac number, because 11172983 - 2² = 11172979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11172683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105353 + ... + 105458.

It is an arithmetic number, because the mean of its divisors is an integer number (2845962).

Almost surely, 2^11172983 is an apocalyptic number.

11172983 is a deficient number, since it is larger than the sum of its proper divisors (210865).

11172983 is an equidigital number, since it uses as much as digits as its factorization.

11172983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210864.

The product of its digits is 3024, while the sum is 32.

The square root of 11172983 is about 3342.6012325732. The cubic root of 11172983 is about 223.5577410717.

The spelling of 11172983 in words is "eleven million, one hundred seventy-two thousand, nine hundred eighty-three".