70691712 has 288 divisors, whose sum is σ = 249885720. Its totient is φ = 17547264.

The previous prime is 70691693. The next prime is 70691717. The reversal of 70691712 is 21719607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70691717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4158328 + ... + 4158344.

Almost surely, 2^70691712 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 70691712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124942860).

70691712 is an abundant number, since it is smaller than the sum of its proper divisors (179194008).

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

70691712 is a wasteful number, since it uses less digits than its factorization.

70691712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 70691712 is about 8407.8363447441. The cubic root of 70691712 is about 413.4815793824.

The spelling of 70691712 in words is "seventy million, six hundred ninety-one thousand, seven hundred twelve".