698429109 has 16 divisors (see below), whose sum is σ = 1110546432. Its totient is φ = 381749808.

The previous prime is 698429107. The next prime is 698429119. The reversal of 698429109 is 901924896.

698429109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 698429109 - 2¹ = 698429107 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698429107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722529 + ... + 723494.

It is an arithmetic number, because the mean of its divisors is an integer number (69409152).

Almost surely, 2^698429109 is an apocalyptic number.

698429109 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

698429109 is a deficient number, since it is larger than the sum of its proper divisors (412117323).

698429109 is a wasteful number, since it uses less digits than its factorization.

698429109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446056.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 698429109 is about 26427.8093870831. The cubic root of 698429109 is about 887.2393136097.

The spelling of 698429109 in words is "six hundred ninety-eight million, four hundred twenty-nine thousand, one hundred nine".