1705139079 has 16 divisors (see below), whose sum is σ = 2637090048. Its totient is φ = 959821632.

The previous prime is 1705139057. The next prime is 1705139089. The reversal of 1705139079 is 9709315071.

It is not a de Polignac number, because 1705139079 - 2⁸ = 1705138823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1705139079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1705139089) 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, 604542 + ... + 607355.

It is an arithmetic number, because the mean of its divisors is an integer number (164818128).

Almost surely, 2^1705139079 is an apocalyptic number.

1705139079 is a deficient number, since it is larger than the sum of its proper divisors (931950969).

1705139079 is a wasteful number, since it uses less digits than its factorization.

1705139079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211974.

The product of its (nonzero) digits is 59535, while the sum is 42.

The square root of 1705139079 is about 41293.3297155848. The cubic root of 1705139079 is about 1194.6846104303.

The spelling of 1705139079 in words is "one billion, seven hundred five million, one hundred thirty-nine thousand, seventy-nine".