70285071 has 4 divisors (see below), whose sum is σ = 93713432. Its totient is φ = 46856712.

The previous prime is 70285063. The next prime is 70285073. The reversal of 70285071 is 17058207.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70285071 - 2³ = 70285063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70285073) 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 3 ways as a sum of consecutive naturals, for example, 11714176 + ... + 11714181.

It is an arithmetic number, because the mean of its divisors is an integer number (23428358).

Almost surely, 2^70285071 is an apocalyptic number.

70285071 is a deficient number, since it is larger than the sum of its proper divisors (23428361).

70285071 is a wasteful number, since it uses less digits than its factorization.

70285071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23428360.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 70285071 is about 8383.6192065241. The cubic root of 70285071 is about 412.6872288721.

The spelling of 70285071 in words is "seventy million, two hundred eighty-five thousand, seventy-one".