9120778 has 8 divisors (see below), whose sum is σ = 14014980. Its totient is φ = 4449120.

The previous prime is 9120757. The next prime is 9120791. The reversal of 9120778 is 8770219.

It can be written as a sum of positive squares in 2 ways, for example, as 8485569 + 635209 = 2913^2 + 797^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55533 + ... + 55696.

Almost surely, 2^9120778 is an apocalyptic number.

9120778 is a deficient number, since it is larger than the sum of its proper divisors (4894202).

9120778 is a wasteful number, since it uses less digits than its factorization.

9120778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111272.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 9120778 is about 3020.0625821330. The cubic root of 9120778 is about 208.9347262261.

The spelling of 9120778 in words is "nine million, one hundred twenty thousand, seven hundred seventy-eight".