1000980778 has 16 divisors (see below), whose sum is σ = 1717836480. Its totient is φ = 428524416.

The previous prime is 1000980763. The next prime is 1000980779. The reversal of 1000980778 is 8770890001.

1000980778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1000980778.

It is not an unprimeable number, because it can be changed into a prime (1000980779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25476 + ... + 51487.

It is an arithmetic number, because the mean of its divisors is an integer number (107364780).

Almost surely, 2^1000980778 is an apocalyptic number.

1000980778 is a deficient number, since it is larger than the sum of its proper divisors (716855702).

1000980778 is an equidigital number, since it uses as much as digits as its factorization.

1000980778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77901.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 1000980778 is about 31638.2802629979. The cubic root of 1000980778 is about 1000.3268191776.

The spelling of 1000980778 in words is "one billion, nine hundred eighty thousand, seven hundred seventy-eight".