11970919 has 2 divisors, whose sum is σ = 11970920. Its totient is φ = 11970918.

The previous prime is 11970913. The next prime is 11970953. The reversal of 11970919 is 91907911.

It is a weak prime.

It is an emirp because it is prime and its reverse (91907911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11970919 - 2⁵ = 11970887 is a prime.

It is a super-2 number, since 2×11970919² = 286605803409122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11970913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5985459 + 5985460.

It is an arithmetic number, because the mean of its divisors is an integer number (5985460).

Almost surely, 2^11970919 is an apocalyptic number.

11970919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11970919 is an equidigital number, since it uses as much as digits as its factorization.

11970919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 37.

The square root of 11970919 is about 3459.9015881958. The cubic root of 11970919 is about 228.7577576077.

The spelling of 11970919 in words is "eleven million, nine hundred seventy thousand, nine hundred nineteen".