70239705 has 8 divisors (see below), whose sum is σ = 112383552. Its totient is φ = 37461168.

The previous prime is 70239703. The next prime is 70239749. The reversal of 70239705 is 50793207.

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

It is not a de Polignac number, because 70239705 - 2¹ = 70239703 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70239703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2341309 + ... + 2341338.

It is an arithmetic number, because the mean of its divisors is an integer number (14047944).

Almost surely, 2^70239705 is an apocalyptic number.

It is an amenable number.

70239705 is a deficient number, since it is larger than the sum of its proper divisors (42143847).

70239705 is a wasteful number, since it uses less digits than its factorization.

70239705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4682655.

The product of its (nonzero) digits is 13230, while the sum is 33.

The square root of 70239705 is about 8380.9131364070. The cubic root of 70239705 is about 412.5984191240.

The spelling of 70239705 in words is "seventy million, two hundred thirty-nine thousand, seven hundred five".