71477716 has 6 divisors (see below), whose sum is σ = 125086010. Its totient is φ = 35738856.

The previous prime is 71477669. The next prime is 71477717. The reversal of 71477716 is 61777417.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 29746116 = 6460^2 + 5454^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71477717) 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, 8934711 + ... + 8934718.

Almost surely, 2^71477716 is an apocalyptic number.

It is an amenable number.

71477716 is a deficient number, since it is larger than the sum of its proper divisors (53608294).

71477716 is a wasteful number, since it uses less digits than its factorization.

71477716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17869433 (or 17869431 counting only the distinct ones).

The product of its digits is 57624, while the sum is 40.

The square root of 71477716 is about 8454.4494794161. The cubic root of 71477716 is about 415.0084016299.

The spelling of 71477716 in words is "seventy-one million, four hundred seventy-seven thousand, seven hundred sixteen".