705540261 has 8 divisors (see below), whose sum is σ = 941379840. Its totient is φ = 470030432.

The previous prime is 705540233. The next prime is 705540263. The reversal of 705540261 is 162045507.

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

It is a cyclic number.

It is not a de Polignac number, because 705540261 - 2⁵ = 705540229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705540263) by changing a digit.

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, 77400 + ... + 86033.

It is an arithmetic number, because the mean of its divisors is an integer number (117672480).

Almost surely, 2^705540261 is an apocalyptic number.

It is an amenable number.

705540261 is a deficient number, since it is larger than the sum of its proper divisors (235839579).

705540261 is a wasteful number, since it uses less digits than its factorization.

705540261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164875.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 705540261 is about 26562.0078495584. The cubic root of 705540261 is about 890.2403344549.

Adding to 705540261 its reverse (162045507), we get a palindrome (867585768).

The spelling of 705540261 in words is "seven hundred five million, five hundred forty thousand, two hundred sixty-one".