11954939 has 2 divisors, whose sum is σ = 11954940. Its totient is φ = 11954938.

The previous prime is 11954923. The next prime is 11954941. The reversal of 11954939 is 93945911.

It is a strong prime.

It is an emirp because it is prime and its reverse (93945911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11954939 - 2⁴ = 11954923 is a prime.

Together with 11954941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11954896 and 11954905.

It is not a weakly prime, because it can be changed into another prime (11954339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5977469 + 5977470.

It is an arithmetic number, because the mean of its divisors is an integer number (5977470).

Almost surely, 2^11954939 is an apocalyptic number.

11954939 is a deficient number, since it is larger than the sum of its proper divisors (1).

11954939 is an equidigital number, since it uses as much as digits as its factorization.

11954939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 41.

The square root of 11954939 is about 3457.5915027661. The cubic root of 11954939 is about 228.6559225752.

The spelling of 11954939 in words is "eleven million, nine hundred fifty-four thousand, nine hundred thirty-nine".