11906047 has 2 divisors, whose sum is σ = 11906048. Its totient is φ = 11906046.

The previous prime is 11906021. The next prime is 11906051. The reversal of 11906047 is 74060911.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11906047 is a prime.

It is equal to p₇₈₂₂₈₁ and since 11906047 and 782281 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 (11906057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5953023 + 5953024.

It is an arithmetic number, because the mean of its divisors is an integer number (5953024).

Almost surely, 2^11906047 is an apocalyptic number.

11906047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11906047 is an equidigital number, since it uses as much as digits as its factorization.

11906047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 11906047 is about 3450.5140196788. The cubic root of 11906047 is about 228.3437860252.

Adding to 11906047 its reverse (74060911), we get a palindrome (85966958).

The spelling of 11906047 in words is "eleven million, nine hundred six thousand, forty-seven".