70447871 has 8 divisors (see below), whose sum is σ = 76070400. Its totient is φ = 64854432.

The previous prime is 70447859. The next prime is 70447901. The reversal of 70447871 is 17874407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70447871 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 (70447171) 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 7 ways as a sum of consecutive naturals, for example, 2096 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (9508800).

Almost surely, 2^70447871 is an apocalyptic number.

70447871 is a deficient number, since it is larger than the sum of its proper divisors (5622529).

70447871 is a wasteful number, since it uses less digits than its factorization.

70447871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14545.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 70447871 is about 8393.3230010527. The cubic root of 70447871 is about 413.0056164190.

The spelling of 70447871 in words is "seventy million, four hundred forty-seven thousand, eight hundred seventy-one".