70712112 has 80 divisors (see below), whose sum is σ = 194853600. Its totient is φ = 22020096.

The previous prime is 70712101. The next prime is 70712113. The reversal of 70712112 is 21121707.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (70712113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157264 + ... + 157712.

It is an arithmetic number, because the mean of its divisors is an integer number (2435670).

Almost surely, 2^70712112 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 70712112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97426800).

70712112 is an abundant number, since it is smaller than the sum of its proper divisors (124141488).

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

70712112 is a wasteful number, since it uses less digits than its factorization.

70712112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 70712112 is about 8409.0494111998. The cubic root of 70712112 is about 413.5213493108.

Adding to 70712112 its reverse (21121707), we get a palindrome (91833819).

The spelling of 70712112 in words is "seventy million, seven hundred twelve thousand, one hundred twelve".