706506505 has 16 divisors (see below), whose sum is σ = 854262864. Its totient is φ = 560920320.

The previous prime is 706506503. The next prime is 706506511. The reversal of 706506505 is 505605607.

It can be written as a sum of positive squares in 8 ways, for example, as 82955664 + 623550841 = 9108^2 + 24971^2 .

It is not a de Polignac number, because 706506505 - 2¹ = 706506503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706506503) 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, 404935 + ... + 406675.

It is an arithmetic number, because the mean of its divisors is an integer number (53391429).

Almost surely, 2^706506505 is an apocalyptic number.

It is an amenable number.

706506505 is a deficient number, since it is larger than the sum of its proper divisors (147756359).

706506505 is a wasteful number, since it uses less digits than its factorization.

706506505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 706506505 is about 26580.1900858515. The cubic root of 706506505 is about 890.6465465681.

The spelling of 706506505 in words is "seven hundred six million, five hundred six thousand, five hundred five".