1098626679 has 16 divisors (see below), whose sum is σ = 1628105440. Its totient is φ = 732188160.

The previous prime is 1098626677. The next prime is 1098626687. The reversal of 1098626679 is 9766268901.

1098626679 is a `hidden beast` number, since 1 + 0 + 9 + 8 + 626 + 6 + 7 + 9 = 666.

It is not a de Polignac number, because 1098626679 - 2¹ = 1098626677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098626677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167889 + ... + 174309.

It is an arithmetic number, because the mean of its divisors is an integer number (101756590).

Almost surely, 2^1098626679 is an apocalyptic number.

1098626679 is a deficient number, since it is larger than the sum of its proper divisors (529478761).

1098626679 is an equidigital number, since it uses as much as digits as its factorization.

1098626679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12767 (or 12761 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 1098626679 is about 33145.5378444822. The cubic root of 1098626679 is about 1031.8503450512.

The spelling of 1098626679 in words is "one billion, ninety-eight million, six hundred twenty-six thousand, six hundred seventy-nine".