11057978 has 4 divisors (see below), whose sum is σ = 16586970. Its totient is φ = 5528988.

The previous prime is 11057953. The next prime is 11058001. The reversal of 11057978 is 87975011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87975011 = 37 ⋅2377703.

It can be written as a sum of positive squares in only one way, i.e., 8602489 + 2455489 = 2933^2 + 1567^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2764493 + ... + 2764496.

Almost surely, 2^11057978 is an apocalyptic number.

11057978 is a deficient number, since it is larger than the sum of its proper divisors (5528992).

11057978 is an equidigital number, since it uses as much as digits as its factorization.

11057978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528991.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 11057978 is about 3325.3538157616. The cubic root of 11057978 is about 222.7880576614.

The spelling of 11057978 in words is "eleven million, fifty-seven thousand, nine hundred seventy-eight".