71530704 has 120 divisors (see below), whose sum is σ = 236770560. Its totient is φ = 19724544.

The previous prime is 71530681. The next prime is 71530717. The reversal of 71530704 is 40703517.

It is a super-2 number, since 2×71530704² = 10233283229471232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 28009 + ... + 30455.

It is an arithmetic number, because the mean of its divisors is an integer number (1973088).

Almost surely, 2^71530704 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 71530704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118385280).

71530704 is an abundant number, since it is smaller than the sum of its proper divisors (165239856).

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

71530704 is a wasteful number, since it uses less digits than its factorization.

71530704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497 (or 2488 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 71530704 is about 8457.5826333533. The cubic root of 71530704 is about 415.1109279120.

The spelling of 71530704 in words is "seventy-one million, five hundred thirty thousand, seven hundred four".