71330772 has 24 divisors (see below), whose sum is σ = 169981056. Its totient is φ = 23270848.

The previous prime is 71330771. The next prime is 71330773. The reversal of 71330772 is 27703317.

It is an interprime number because it is at equal distance from previous prime (71330771) and next prime (71330773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71330771) 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 7 ways as a sum of consecutive naturals, for example, 62673 + ... + 63800.

It is an arithmetic number, because the mean of its divisors is an integer number (7082544).

Almost surely, 2^71330772 is an apocalyptic number.

It is an amenable number.

71330772 is an abundant number, since it is smaller than the sum of its proper divisors (98650284).

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

71330772 is a wasteful number, since it uses less digits than its factorization.

71330772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126527 (or 126525 counting only the distinct ones).

The product of its (nonzero) digits is 6174, while the sum is 30.

The square root of 71330772 is about 8445.7546732071. The cubic root of 71330772 is about 414.7238148830.

The spelling of 71330772 in words is "seventy-one million, three hundred thirty thousand, seven hundred seventy-two".