71734421 has 16 divisors (see below), whose sum is σ = 80137728. Its totient is φ = 63663600.

The previous prime is 71734357. The next prime is 71734427. The reversal of 71734421 is 12443717.

It is not a de Polignac number, because 71734421 - 2⁶ = 71734357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71734427) 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 15 ways as a sum of consecutive naturals, for example, 96176 + ... + 96918.

It is an arithmetic number, because the mean of its divisors is an integer number (5008608).

Almost surely, 2^71734421 is an apocalyptic number.

It is an amenable number.

71734421 is a deficient number, since it is larger than the sum of its proper divisors (8403307).

71734421 is a wasteful number, since it uses less digits than its factorization.

71734421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952.

The product of its digits is 4704, while the sum is 29.

The square root of 71734421 is about 8469.6175238319. The cubic root of 71734421 is about 415.5046283110.

The spelling of 71734421 in words is "seventy-one million, seven hundred thirty-four thousand, four hundred twenty-one".