11880047 has 2 divisors, whose sum is σ = 11880048. Its totient is φ = 11880046.

The previous prime is 11880041. The next prime is 11880061. The reversal of 11880047 is 74008811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11880047 - 2⁴ = 11880031 is a prime.

It is a super-2 number, since 2×11880047² = 282271033444418, 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 (11880041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5940023 + 5940024.

It is an arithmetic number, because the mean of its divisors is an integer number (5940024).

Almost surely, 2^11880047 is an apocalyptic number.

11880047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11880047 is an equidigital number, since it uses as much as digits as its factorization.

11880047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 11880047 is about 3446.7444059576. The cubic root of 11880047 is about 228.1774485523.

Adding to 11880047 its reverse (74008811), we get a palindrome (85888858).

The spelling of 11880047 in words is "eleven million, eight hundred eighty thousand, forty-seven".