11477819 has 2 divisors, whose sum is σ = 11477820. Its totient is φ = 11477818.

The previous prime is 11477797. The next prime is 11477857. The reversal of 11477819 is 91877411.

It is a happy number.

It is an a-pointer prime, because the next prime (11477857) can be obtained adding 11477819 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11477819 is a prime.

It is a super-2 number, since 2×11477819² = 263480657993522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11477899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5738909 + 5738910.

It is an arithmetic number, because the mean of its divisors is an integer number (5738910).

Almost surely, 2^11477819 is an apocalyptic number.

11477819 is a deficient number, since it is larger than the sum of its proper divisors (1).

11477819 is an equidigital number, since it uses as much as digits as its factorization.

11477819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 38.

The square root of 11477819 is about 3387.8930030330. The cubic root of 11477819 is about 225.5726581366.

The spelling of 11477819 in words is "eleven million, four hundred seventy-seven thousand, eight hundred nineteen".