11910973 has 2 divisors, whose sum is σ = 11910974. Its totient is φ = 11910972.

The previous prime is 11910971. The next prime is 11911013. The reversal of 11910973 is 37901911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8139609 + 3771364 = 2853^2 + 1942^2 .

It is an emirp because it is prime and its reverse (37901911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11910973 - 2¹ = 11910971 is a prime.

Together with 11910971, it forms a pair of twin primes.

It is equal to p₇₈₂₅₈₁ and since 11910973 and 782581 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 (11910971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5955486 + 5955487.

It is an arithmetic number, because the mean of its divisors is an integer number (5955487).

Almost surely, 2^11910973 is an apocalyptic number.

It is an amenable number.

11910973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11910973 is an equidigital number, since it uses as much as digits as its factorization.

11910973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 31.

The square root of 11910973 is about 3451.2277525542. The cubic root of 11910973 is about 228.3752732854.

The spelling of 11910973 in words is "eleven million, nine hundred ten thousand, nine hundred seventy-three".