705729039 has 4 divisors (see below), whose sum is σ = 940972056. Its totient is φ = 470486024.

The previous prime is 705729019. The next prime is 705729061. The reversal of 705729039 is 930927507.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 705729039 - 2⁸ = 705728783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705729019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117621504 + ... + 117621509.

It is an arithmetic number, because the mean of its divisors is an integer number (235243014).

Almost surely, 2^705729039 is an apocalyptic number.

705729039 is a deficient number, since it is larger than the sum of its proper divisors (235243017).

705729039 is a wasteful number, since it uses less digits than its factorization.

705729039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235243016.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 705729039 is about 26565.5611459649. The cubic root of 705729039 is about 890.3197264767.

The spelling of 705729039 in words is "seven hundred five million, seven hundred twenty-nine thousand, thirty-nine".