10920778 has 8 divisors (see below), whose sum is σ = 17870400. Its totient is φ = 4963980.

The previous prime is 10920757. The next prime is 10920787. The reversal of 10920778 is 87702901.

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

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 in 3 ways as a sum of consecutive naturals, for example, 248178 + ... + 248221.

It is an arithmetic number, because the mean of its divisors is an integer number (2233800).

Almost surely, 2^10920778 is an apocalyptic number.

10920778 is a deficient number, since it is larger than the sum of its proper divisors (6949622).

10920778 is a wasteful number, since it uses less digits than its factorization.

10920778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496412.

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

The square root of 10920778 is about 3304.6600430301. The cubic root of 10920778 is about 221.8628186925.

The spelling of 10920778 in words is "ten million, nine hundred twenty thousand, seven hundred seventy-eight".