70884217 has 8 divisors (see below), whose sum is σ = 71656200. Its totient is φ = 70116480.

The previous prime is 70884181. The next prime is 70884223. The reversal of 70884217 is 71248807.

It can be written as a sum of positive squares in 4 ways, for example, as 2920681 + 67963536 = 1709^2 + 8244^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70884217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70884277) 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, 41023 + ... + 42715.

It is an arithmetic number, because the mean of its divisors is an integer number (8957025).

Almost surely, 2^70884217 is an apocalyptic number.

It is an amenable number.

70884217 is a deficient number, since it is larger than the sum of its proper divisors (771983).

70884217 is a wasteful number, since it uses less digits than its factorization.

70884217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 70884217 is about 8419.2765128602. The cubic root of 70884217 is about 413.8565650123.

The spelling of 70884217 in words is "seventy million, eight hundred eighty-four thousand, two hundred seventeen".