71021324 has 48 divisors (see below), whose sum is σ = 140990976. Its totient is φ = 31022400.

The previous prime is 71021303. The next prime is 71021333. The reversal of 71021324 is 42312017.

It is a junction number, because it is equal to n+sod(n) for n = 71021296 and 71021305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125867 + ... + 126429.

It is an arithmetic number, because the mean of its divisors is an integer number (2937312).

Almost surely, 2^71021324 is an apocalyptic number.

It is an amenable number.

71021324 is a deficient number, since it is larger than the sum of its proper divisors (69969652).

71021324 is a wasteful number, since it uses less digits than its factorization.

71021324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 71021324 is about 8427.4150247867. The cubic root of 71021324 is about 414.1232256274.

The spelling of 71021324 in words is "seventy-one million, twenty-one thousand, three hundred twenty-four".