11978283 has 4 divisors (see below), whose sum is σ = 15971048. Its totient is φ = 7985520.

The previous prime is 11978237. The next prime is 11978287. The reversal of 11978283 is 38287911.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11978283 - 2¹⁴ = 11961899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11978287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1996378 + ... + 1996383.

It is an arithmetic number, because the mean of its divisors is an integer number (3992762).

Almost surely, 2^11978283 is an apocalyptic number.

11978283 is a deficient number, since it is larger than the sum of its proper divisors (3992765).

11978283 is an equidigital number, since it uses as much as digits as its factorization.

11978283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992764.

The product of its digits is 24192, while the sum is 39.

The square root of 11978283 is about 3460.9656167029. The cubic root of 11978283 is about 228.8046553387.

The spelling of 11978283 in words is "eleven million, nine hundred seventy-eight thousand, two hundred eighty-three".