70885805 has 8 divisors (see below), whose sum is σ = 85435800. Its totient is φ = 56460096.

The previous prime is 70885781. The next prime is 70885817. The reversal of 70885805 is 50858807.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40271716 + 30614089 = 6346^2 + 5533^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 70885805 - 2¹² = 70881709 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29810 + ... + 32099.

It is an arithmetic number, because the mean of its divisors is an integer number (10679475).

Almost surely, 2^70885805 is an apocalyptic number.

It is an amenable number.

70885805 is a deficient number, since it is larger than the sum of its proper divisors (14549995).

70885805 is a wasteful number, since it uses less digits than its factorization.

70885805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62143.

The product of its (nonzero) digits is 89600, while the sum is 41.

The square root of 70885805 is about 8419.3708197228. The cubic root of 70885805 is about 413.8596554949.

The spelling of 70885805 in words is "seventy million, eight hundred eighty-five thousand, eight hundred five".