706820305 has 36 divisors (see below), whose sum is σ = 932844060. Its totient is φ = 514014720.

The previous prime is 706820297. The next prime is 706820327. The reversal of 706820305 is 503028607.

It can be written as a sum of positive squares in 6 ways, for example, as 104019601 + 602800704 = 10199^2 + 24552^2 .

It is not a de Polignac number, because 706820305 - 2³ = 706820297 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1388391 + ... + 1388899.

It is an arithmetic number, because the mean of its divisors is an integer number (25912335).

Almost surely, 2^706820305 is an apocalyptic number.

It is an amenable number.

706820305 is a deficient number, since it is larger than the sum of its proper divisors (226023755).

706820305 is a wasteful number, since it uses less digits than its factorization.

706820305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 706820305 is about 26586.0923228669. The cubic root of 706820305 is about 890.7783894297.

The spelling of 706820305 in words is "seven hundred six million, eight hundred twenty thousand, three hundred five".