1704949909 has 24 divisors (see below), whose sum is σ = 1886592384. Its totient is φ = 1539720000.

The previous prime is 1704949889. The next prime is 1704949913. The reversal of 1704949909 is 9099494071.

It is not a de Polignac number, because 1704949909 - 2¹⁵ = 1704917141 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 (1704949919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1811379 + ... + 1812319.

It is an arithmetic number, because the mean of its divisors is an integer number (78608016).

Almost surely, 2^1704949909 is an apocalyptic number.

It is an amenable number.

1704949909 is a deficient number, since it is larger than the sum of its proper divisors (181642475).

1704949909 is a wasteful number, since it uses less digits than its factorization.

1704949909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 1704949909 is about 41291.0390884027. The cubic root of 1704949909 is about 1194.6404289227.

The spelling of 1704949909 in words is "one billion, seven hundred four million, nine hundred forty-nine thousand, nine hundred nine".