70117215 has 32 divisors (see below), whose sum is σ = 132641280. Its totient is φ = 30946944.

The previous prime is 70117213. The next prime is 70117217. The reversal of 70117215 is 51271107.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70117213) and next prime (70117217).

It is not a de Polignac number, because 70117215 - 2¹ = 70117213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70117213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8469 + ... + 14558.

It is an arithmetic number, because the mean of its divisors is an integer number (4145040).

Almost surely, 2^70117215 is an apocalyptic number.

70117215 is a deficient number, since it is larger than the sum of its proper divisors (62524065).

70117215 is a wasteful number, since it uses less digits than its factorization.

70117215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23071.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 70117215 is about 8373.6022714242. The cubic root of 70117215 is about 412.3584381093.

The spelling of 70117215 in words is "seventy million, one hundred seventeen thousand, two hundred fifteen".