70471680 has 208 divisors, whose sum is σ = 239046144. Its totient is φ = 17694720.

The previous prime is 70471663. The next prime is 70471691. The reversal of 70471680 is 8617407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1904622 + ... + 1904658.

Almost surely, 2^70471680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70471680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119523072).

70471680 is an abundant number, since it is smaller than the sum of its proper divisors (168574464).

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

70471680 is a wasteful number, since it uses less digits than its factorization.

70471680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 70471680 is about 8394.7412110201. The cubic root of 70471680 is about 413.0521384928.

The spelling of 70471680 in words is "seventy million, four hundred seventy-one thousand, six hundred eighty".