705402505 has 16 divisors (see below), whose sum is σ = 902307600. Its totient is φ = 527552512.

The previous prime is 705402491. The next prime is 705402517. The reversal of 705402505 is 505204507.

It can be written as a sum of positive squares in 8 ways, for example, as 42237001 + 663165504 = 6499^2 + 25752^2 .

It is a cyclic number.

It is not a de Polignac number, because 705402505 - 2⁵ = 705402473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15184 + ... + 40513.

It is an arithmetic number, because the mean of its divisors is an integer number (56394225).

Almost surely, 2^705402505 is an apocalyptic number.

It is an amenable number.

705402505 is a deficient number, since it is larger than the sum of its proper divisors (196905095).

705402505 is a wasteful number, since it uses less digits than its factorization.

705402505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55868.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 705402505 is about 26559.4146208082. The cubic root of 705402505 is about 890.1823911847.

The spelling of 705402505 in words is "seven hundred five million, four hundred two thousand, five hundred five".