71834728 has 16 divisors (see below), whose sum is σ = 153931680. Its totient is φ = 30786288.

The previous prime is 71834677. The next prime is 71834729. The reversal of 71834728 is 82743817.

It is not an unprimeable number, because it can be changed into a prime (71834729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641326 + ... + 641437.

It is an arithmetic number, because the mean of its divisors is an integer number (9620730).

Almost surely, 2^71834728 is an apocalyptic number.

It is an amenable number.

71834728 is an abundant number, since it is smaller than the sum of its proper divisors (82096952).

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

71834728 is a wasteful number, since it uses less digits than its factorization.

71834728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282776 (or 1282772 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 71834728 is about 8475.5370331325. The cubic root of 71834728 is about 415.6982062846.

It can be divided in two parts, 7183 and 4728, that added together give a palindrome (11911).

The spelling of 71834728 in words is "seventy-one million, eight hundred thirty-four thousand, seven hundred twenty-eight".