71520476 has 6 divisors (see below), whose sum is σ = 125160840. Its totient is φ = 35760236.

The previous prime is 71520473. The next prime is 71520539. The reversal of 71520476 is 67402517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71520473) 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 as a sum of consecutive naturals, namely, 8940056 + ... + 8940063.

It is an arithmetic number, because the mean of its divisors is an integer number (20860140).

Almost surely, 2^71520476 is an apocalyptic number.

It is an amenable number.

71520476 is a deficient number, since it is larger than the sum of its proper divisors (53640364).

71520476 is a wasteful number, since it uses less digits than its factorization.

71520476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17880123 (or 17880121 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 71520476 is about 8456.9779472339. The cubic root of 71520476 is about 415.0911417376.

The spelling of 71520476 in words is "seventy-one million, five hundred twenty thousand, four hundred seventy-six".