70021713 has 8 divisors (see below), whose sum is σ = 93506176. Its totient is φ = 46609200.

The previous prime is 70021711. The next prime is 70021739. The reversal of 70021713 is 31712007.

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

It is not a de Polignac number, because 70021713 - 2¹ = 70021711 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70021713.

It is not an unprimeable number, because it can be changed into a prime (70021711) 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 7 ways as a sum of consecutive naturals, for example, 15673 + ... + 19638.

It is an arithmetic number, because the mean of its divisors is an integer number (11688272).

Almost surely, 2^70021713 is an apocalyptic number.

It is an amenable number.

70021713 is a deficient number, since it is larger than the sum of its proper divisors (23484463).

70021713 is a wasteful number, since it uses less digits than its factorization.

70021713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35975.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 70021713 is about 8367.8977646718. The cubic root of 70021713 is about 412.1711377032.

Adding to 70021713 its product of nonzero digits (294), we get a palindrome (70022007).

The spelling of 70021713 in words is "seventy million, twenty-one thousand, seven hundred thirteen".