73071071 has 4 divisors (see below), whose sum is σ = 74161752. Its totient is φ = 71980392.

The previous prime is 73071007. The next prime is 73071077. The reversal of 73071071 is 17017037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17017037 = 163 ⋅104399.

It is a cyclic number.

It is not a de Polignac number, because 73071071 - 2⁶ = 73071007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73071071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73071077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545240 + ... + 545373.

It is an arithmetic number, because the mean of its divisors is an integer number (18540438).

Almost surely, 2^73071071 is an apocalyptic number.

73071071 is a deficient number, since it is larger than the sum of its proper divisors (1090681).

73071071 is a wasteful number, since it uses less digits than its factorization.

73071071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090680.

The product of its (nonzero) digits is 1029, while the sum is 26.

The square root of 73071071 is about 8548.1618491931. The cubic root of 73071071 is about 418.0695056995.

The spelling of 73071071 in words is "seventy-three million, seventy-one thousand, seventy-one".