70770870 has 48 divisors (see below), whose sum is σ = 185749200. Its totient is φ = 18693312.

The previous prime is 70770859. The next prime is 70770929. The reversal of 70770870 is 7807707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5956 + ... + 13304.

It is an arithmetic number, because the mean of its divisors is an integer number (3869775).

Almost surely, 2^70770870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70770870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92874600).

70770870 is an abundant number, since it is smaller than the sum of its proper divisors (114978330).

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

70770870 is a wasteful number, since it uses less digits than its factorization.

70770870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469 (or 7466 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 36.

The square root of 70770870 is about 8412.5424218841. The cubic root of 70770870 is about 413.6358556748.

The spelling of 70770870 in words is "seventy million, seven hundred seventy thousand, eight hundred seventy".