11878522 has 4 divisors (see below), whose sum is σ = 17817786. Its totient is φ = 5939260.

The previous prime is 11878507. The next prime is 11878577. The reversal of 11878522 is 22587811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22587811 = 3677 ⋅6143.

It can be written as a sum of positive squares in only one way, i.e., 7834401 + 4044121 = 2799^2 + 2011^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2969629 + ... + 2969632.

Almost surely, 2^11878522 is an apocalyptic number.

11878522 is a deficient number, since it is larger than the sum of its proper divisors (5939264).

11878522 is an equidigital number, since it uses as much as digits as its factorization.

11878522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939263.

The product of its digits is 8960, while the sum is 34.

The square root of 11878522 is about 3446.5231756076. The cubic root of 11878522 is about 228.1676846880.

The spelling of 11878522 in words is "eleven million, eight hundred seventy-eight thousand, five hundred twenty-two".