71004414 has 32 divisors (see below), whose sum is σ = 154463904. Its totient is φ = 21628800.

The previous prime is 71004413. The next prime is 71004431. The reversal of 71004414 is 41440017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71004413) 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, 3372 + ... + 12384.

It is an arithmetic number, because the mean of its divisors is an integer number (4826997).

Almost surely, 2^71004414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71004414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77231952).

71004414 is an abundant number, since it is smaller than the sum of its proper divisors (83459490).

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

71004414 is a wasteful number, since it uses less digits than its factorization.

71004414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9132.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 71004414 is about 8426.4116918176. The cubic root of 71004414 is about 414.0903557830.

The spelling of 71004414 in words is "seventy-one million, four thousand, four hundred fourteen".