71690112 has 96 divisors (see below), whose sum is σ = 222211080. Its totient is φ = 22053888.

The previous prime is 71690111. The next prime is 71690141. The reversal of 71690112 is 21109617.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71690111) 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 11 ways as a sum of consecutive naturals, for example, 12583 + ... + 17369.

Almost surely, 2^71690112 is an apocalyptic number.

71690112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71690112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111105540).

71690112 is an abundant number, since it is smaller than the sum of its proper divisors (150520968).

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

71690112 is a wasteful number, since it uses less digits than its factorization.

71690112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4820 (or 4805 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 71690112 is about 8467.0013582141. The cubic root of 71690112 is about 415.4190608979.

Adding to 71690112 its reverse (21109617), we get a palindrome (92799729).

The spelling of 71690112 in words is "seventy-one million, six hundred ninety thousand, one hundred twelve".