71065701 has 16 divisors (see below), whose sum is σ = 120323200. Its totient is φ = 40608864.

The previous prime is 71065697. The next prime is 71065723. The reversal of 71065701 is 10756017.

71065701 is a `hidden beast` number, since 7 + 1 + 0 + 657 + 0 + 1 = 666.

It is not a de Polignac number, because 71065701 - 2² = 71065697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71065741) 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 15 ways as a sum of consecutive naturals, for example, 187816 + ... + 188193.

It is an arithmetic number, because the mean of its divisors is an integer number (7520200).

Almost surely, 2^71065701 is an apocalyptic number.

It is an amenable number.

71065701 is a deficient number, since it is larger than the sum of its proper divisors (49257499).

71065701 is a wasteful number, since it uses less digits than its factorization.

71065701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376025 (or 376019 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 71065701 is about 8430.0475087629. The cubic root of 71065701 is about 414.2094613240.

The spelling of 71065701 in words is "seventy-one million, sixty-five thousand, seven hundred one".