70705668 has 96 divisors (see below), whose sum is σ = 191213568. Its totient is φ = 20131200.

The previous prime is 70705667. The next prime is 70705673. The reversal of 70705668 is 86650707.

It is not an unprimeable number, because it can be changed into a prime (70705667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151171 + ... + 151637.

It is an arithmetic number, because the mean of its divisors is an integer number (1991808).

Almost surely, 2^70705668 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 70705668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95606784).

70705668 is an abundant number, since it is smaller than the sum of its proper divisors (120507900).

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

70705668 is a wasteful number, since it uses less digits than its factorization.

70705668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 70705668 is about 8408.6662438225. Note that the first 3 decimals coincide. The cubic root of 70705668 is about 413.5087875188.

The spelling of 70705668 in words is "seventy million, seven hundred five thousand, six hundred sixty-eight".