11878975 has 6 divisors (see below), whose sum is σ = 14729960. Its totient is φ = 9503160.

The previous prime is 11878973. The next prime is 11878991. The reversal of 11878975 is 57987811.

It is not a de Polignac number, because 11878975 - 2¹ = 11878973 is a prime.

It is a super-2 number, since 2×11878975² = 282220094101250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237555 + ... + 237604.

Almost surely, 2^11878975 is an apocalyptic number.

11878975 is a deficient number, since it is larger than the sum of its proper divisors (2850985).

11878975 is an equidigital number, since it uses as much as digits as its factorization.

11878975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475169 (or 475164 counting only the distinct ones).

The product of its digits is 141120, while the sum is 46.

The square root of 11878975 is about 3446.5888933843. The cubic root of 11878975 is about 228.1705851232.

The spelling of 11878975 in words is "eleven million, eight hundred seventy-eight thousand, nine hundred seventy-five".