71189694 has 48 divisors (see below), whose sum is σ = 166355280. Its totient is φ = 21928320.

The previous prime is 71189689. The next prime is 71189707. The reversal of 71189694 is 49698117.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11484 + ... + 16560.

It is an arithmetic number, because the mean of its divisors is an integer number (3465735).

Almost surely, 2^71189694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71189694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83177640).

71189694 is an abundant number, since it is smaller than the sum of its proper divisors (95165586).

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

71189694 is a wasteful number, since it uses less digits than its factorization.

71189694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145 (or 5142 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 71189694 is about 8437.3985327232. The cubic root of 71189694 is about 414.4502208469.

The spelling of 71189694 in words is "seventy-one million, one hundred eighty-nine thousand, six hundred ninety-four".