70087117 has 2 divisors, whose sum is σ = 70087118. Its totient is φ = 70087116.

The previous prime is 70087111. The next prime is 70087123. The reversal of 70087117 is 71178007.

It is a balanced prime because it is at equal distance from previous prime (70087111) and next prime (70087123).

It can be written as a sum of positive squares in only one way, i.e., 50893956 + 19193161 = 7134^2 + 4381^2 .

It is an emirp because it is prime and its reverse (71178007) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70087117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70087111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35043558 + 35043559.

It is an arithmetic number, because the mean of its divisors is an integer number (35043559).

Almost surely, 2^70087117 is an apocalyptic number.

It is an amenable number.

70087117 is a deficient number, since it is larger than the sum of its proper divisors (1).

70087117 is an equidigital number, since it uses as much as digits as its factorization.

70087117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 31.

The square root of 70087117 is about 8371.8048830584. The cubic root of 70087117 is about 412.2994276816.

The spelling of 70087117 in words is "seventy million, eighty-seven thousand, one hundred seventeen".