70006505 has 8 divisors (see below), whose sum is σ = 84235272. Its totient is φ = 55853568.

The previous prime is 70006501. The next prime is 70006513. The reversal of 70006505 is 50560007.

It can be written as a sum of positive squares in 4 ways, for example, as 6310144 + 63696361 = 2512^2 + 7981^2 .

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 70006505 - 2² = 70006501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70006501) 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 7 ways as a sum of consecutive naturals, for example, 16904 + ... + 20633.

It is an arithmetic number, because the mean of its divisors is an integer number (10529409).

Almost surely, 2^70006505 is an apocalyptic number.

It is an amenable number.

70006505 is a deficient number, since it is larger than the sum of its proper divisors (14228767).

70006505 is a wasteful number, since it uses less digits than its factorization.

70006505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37915.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 70006505 is about 8366.9890044149. The cubic root of 70006505 is about 412.1412957573.

The spelling of 70006505 in words is "seventy million, six thousand, five hundred five".