70870880 has 48 divisors (see below), whose sum is σ = 171342864. Its totient is φ = 27686400.

The previous prime is 70870879. The next prime is 70870903. The reversal of 70870880 is 8807807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 12030.

It is an arithmetic number, because the mean of its divisors is an integer number (3569643).

Almost surely, 2^70870880 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 70870880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85671432).

70870880 is an abundant number, since it is smaller than the sum of its proper divisors (100471984).

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

70870880 is a wasteful number, since it uses less digits than its factorization.

70870880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10359 (or 10351 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 70870880 is about 8418.4844241704. The cubic root of 70870880 is about 413.8306074181.

The spelling of 70870880 in words is "seventy million, eight hundred seventy thousand, eight hundred eighty".