70117205 has 4 divisors (see below), whose sum is σ = 84140652. Its totient is φ = 56093760.

The previous prime is 70117171. The next prime is 70117213. The reversal of 70117205 is 50271107.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50271107 = 103 ⋅488069.

It can be written as a sum of positive squares in 2 ways, for example, as 17380561 + 52736644 = 4169^2 + 7262^2 .

It is not a de Polignac number, because 70117205 - 2⁶ = 70117141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7011716 + ... + 7011725.

It is an arithmetic number, because the mean of its divisors is an integer number (21035163).

Almost surely, 2^70117205 is an apocalyptic number.

It is an amenable number.

70117205 is a deficient number, since it is larger than the sum of its proper divisors (14023447).

70117205 is a wasteful number, since it uses less digits than its factorization.

70117205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14023446.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 70117205 is about 8373.6016743096. The cubic root of 70117205 is about 412.3584185060.

The spelling of 70117205 in words is "seventy million, one hundred seventeen thousand, two hundred five".