71083432 has 64 divisors (see below), whose sum is σ = 160300800. Its totient is φ = 28892160.

The previous prime is 71083423. The next prime is 71083447. The reversal of 71083432 is 23438017.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 71083432.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294832 + ... + 295072.

It is an arithmetic number, because the mean of its divisors is an integer number (2504700).

Almost surely, 2^71083432 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 71083432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80150400).

71083432 is an abundant number, since it is smaller than the sum of its proper divisors (89217368).

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

71083432 is a wasteful number, since it uses less digits than its factorization.

71083432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 71083432 is about 8431.0990979824. The cubic root of 71083432 is about 414.2439070886.

The spelling of 71083432 in words is "seventy-one million, eighty-three thousand, four hundred thirty-two".