70855680 has 176 divisors, whose sum is σ = 259395840. Its totient is φ = 16171008.

The previous prime is 70855679. The next prime is 70855723. The reversal of 70855680 is 8655807.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107191 + ... + 107849.

It is an arithmetic number, because the mean of its divisors is an integer number (1473840).

Almost surely, 2^70855680 is an apocalyptic number.

70855680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70855680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129697920).

70855680 is an abundant number, since it is smaller than the sum of its proper divisors (188540160).

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

70855680 is a wasteful number, since it uses less digits than its factorization.

70855680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 70855680 is about 8417.5816004361. The cubic root of 70855680 is about 413.8010199252.

The spelling of 70855680 in words is "seventy million, eight hundred fifty-five thousand, six hundred eighty".