70085178 has 48 divisors (see below), whose sum is σ = 159344640. Its totient is φ = 22236768.

The previous prime is 70085177. The next prime is 70085179. The reversal of 70085178 is 87158007.

It is an interprime number because it is at equal distance from previous prime (70085177) and next prime (70085179).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70085177) 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 23 ways as a sum of consecutive naturals, for example, 30183 + ... + 32421.

It is an arithmetic number, because the mean of its divisors is an integer number (3319680).

Almost surely, 2^70085178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70085178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79672320).

70085178 is an abundant number, since it is smaller than the sum of its proper divisors (89259462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70085178 is a wasteful number, since it uses less digits than its factorization.

70085178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331 (or 2328 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 70085178 is about 8371.6890768829. The cubic root of 70085178 is about 412.2956254804.

The spelling of 70085178 in words is "seventy million, eighty-five thousand, one hundred seventy-eight".