705400705 has 8 divisors (see below), whose sum is σ = 846875304. Its totient is φ = 564057600.

The previous prime is 705400693. The next prime is 705400711. The reversal of 705400705 is 507004507.

It can be written as a sum of positive squares in 4 ways, for example, as 151880976 + 553519729 = 12324^2 + 23527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 705400705 - 2²⁹ = 168529793 is a prime.

It is a super-2 number, since 2×705400705² = 995180309228994050, which contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 20656 + ... + 42865.

It is an arithmetic number, because the mean of its divisors is an integer number (105859413).

Almost surely, 2^705400705 is an apocalyptic number.

It is an amenable number.

705400705 is a deficient number, since it is larger than the sum of its proper divisors (141474599).

705400705 is a wasteful number, since it uses less digits than its factorization.

705400705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65747.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 705400705 is about 26559.3807344976. The cubic root of 705400705 is about 890.1816340143.

The spelling of 705400705 in words is "seven hundred five million, four hundred thousand, seven hundred five".