70956889 has 4 divisors (see below), whose sum is σ = 70974180. Its totient is φ = 70939600.

The previous prime is 70956857. The next prime is 70956911. The reversal of 70956889 is 98865907.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18147600 + 52809289 = 4260^2 + 7267^2 .

It is a cyclic number.

It is not a de Polignac number, because 70956889 - 2⁵ = 70956857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70956829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407 + ... + 11995.

It is an arithmetic number, because the mean of its divisors is an integer number (17743545).

Almost surely, 2^70956889 is an apocalyptic number.

It is an amenable number.

70956889 is a deficient number, since it is larger than the sum of its proper divisors (17291).

70956889 is a wasteful number, since it uses less digits than its factorization.

70956889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17290.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 70956889 is about 8423.5912175271. The cubic root of 70956889 is about 413.9979482111.

The spelling of 70956889 in words is "seventy million, nine hundred fifty-six thousand, eight hundred eighty-nine".