71066744 has 16 divisors (see below), whose sum is σ = 152286000. Its totient is φ = 30457152.

The previous prime is 71066713. The next prime is 71066777. The reversal of 71066744 is 44766017.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634469 + ... + 634580.

It is an arithmetic number, because the mean of its divisors is an integer number (9517875).

Almost surely, 2^71066744 is an apocalyptic number.

It is an amenable number.

71066744 is an abundant number, since it is smaller than the sum of its proper divisors (81219256).

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

71066744 is a wasteful number, since it uses less digits than its factorization.

71066744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269062 (or 1269058 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 71066744 is about 8430.1093705835. The cubic root of 71066744 is about 414.2114877040.

The spelling of 71066744 in words is "seventy-one million, sixty-six thousand, seven hundred forty-four".