70857359 has 4 divisors (see below), whose sum is σ = 71374704. Its totient is φ = 70340016.

The previous prime is 70857323. The next prime is 70857379. The reversal of 70857359 is 95375807.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70857359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70857379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258467 + ... + 258740.

It is an arithmetic number, because the mean of its divisors is an integer number (17843676).

Almost surely, 2^70857359 is an apocalyptic number.

70857359 is a deficient number, since it is larger than the sum of its proper divisors (517345).

70857359 is a wasteful number, since it uses less digits than its factorization.

70857359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517344.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 70857359 is about 8417.6813315782. The cubic root of 70857359 is about 413.8042883831.

The spelling of 70857359 in words is "seventy million, eight hundred fifty-seven thousand, three hundred fifty-nine".