10998779 has 12 divisors (see below), whose sum is σ = 12803112. Its totient is φ = 9408960.

The previous prime is 10998763. The next prime is 10998781. The reversal of 10998779 is 97789901.

10998779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10998779 - 2⁴ = 10998763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10998079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617 + ... + 4730.

It is an arithmetic number, because the mean of its divisors is an integer number (1066926).

Almost surely, 2^10998779 is an apocalyptic number.

10998779 is a deficient number, since it is larger than the sum of its proper divisors (1804333).

10998779 is a wasteful number, since it uses less digits than its factorization.

10998779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386 (or 5375 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 50.

The square root of 10998779 is about 3316.4407125712. The cubic root of 10998779 is about 222.3897800261.

The spelling of 10998779 in words is "ten million, nine hundred ninety-eight thousand, seven hundred seventy-nine".