11077978 has 4 divisors (see below), whose sum is σ = 16616970. Its totient is φ = 5538988.

The previous prime is 11077949. The next prime is 11077987. The reversal of 11077978 is 87977011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6985449 + 4092529 = 2643^2 + 2023^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11077978.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769493 + ... + 2769496.

Almost surely, 2^11077978 is an apocalyptic number.

11077978 is a deficient number, since it is larger than the sum of its proper divisors (5538992).

11077978 is an equidigital number, since it uses as much as digits as its factorization.

11077978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538991.

The product of its (nonzero) digits is 24696, while the sum is 40.

The square root of 11077978 is about 3328.3596560468. The cubic root of 11077978 is about 222.9222918933.

The spelling of 11077978 in words is "eleven million, seventy-seven thousand, nine hundred seventy-eight".