11975983 has 2 divisors, whose sum is σ = 11975984. Its totient is φ = 11975982.

The previous prime is 11975941. The next prime is 11975993. The reversal of 11975983 is 38957911.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11975983 is a prime.

It is equal to p₇₈₆₅₉₈ and since 11975983 and 786598 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11975923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5987991 + 5987992.

It is an arithmetic number, because the mean of its divisors is an integer number (5987992).

Almost surely, 2^11975983 is an apocalyptic number.

11975983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11975983 is an equidigital number, since it uses as much as digits as its factorization.

11975983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 43.

The square root of 11975983 is about 3460.6333235406. The cubic root of 11975983 is about 228.7900098231.

The spelling of 11975983 in words is "eleven million, nine hundred seventy-five thousand, nine hundred eighty-three".