70912 has 18 divisors (see below), whose sum is σ = 142058. Its totient is φ = 35328.

The previous prime is 70901. The next prime is 70913. The reversal of 70912 is 21907.

It can be written as a sum of positive squares in only one way, i.e., 50176 + 20736 = 224^2 + 144^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70913) by changing a digit.

70912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118 + ... + 394.

2⁷⁰⁹¹² 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 70912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71029).

70912 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70912 is an equidigital number, since it uses as much as digits as its factorization.

70912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 70912 is about 266.2930716335. The cubic root of 70912 is about 41.3910628176.

The spelling of 70912 in words is "seventy thousand, nine hundred twelve".