71950073 has 12 divisors (see below), whose sum is σ = 80260908. Its totient is φ = 64115520.

The previous prime is 71950061. The next prime is 71950133. The reversal of 71950073 is 37005917.

It can be written as a sum of positive squares in 6 ways, for example, as 6615184 + 65334889 = 2572^2 + 8083^2 .

It is not a de Polignac number, because 71950073 - 2⁴ = 71950057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71950013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7643 + ... + 14223.

It is an arithmetic number, because the mean of its divisors is an integer number (6688409).

Almost surely, 2^71950073 is an apocalyptic number.

It is an amenable number.

71950073 is a deficient number, since it is larger than the sum of its proper divisors (8310835).

71950073 is a wasteful number, since it uses less digits than its factorization.

71950073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652 (or 6623 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 32.

The square root of 71950073 is about 8482.3388873588. The cubic root of 71950073 is about 415.9205827964.

The spelling of 71950073 in words is "seventy-one million, nine hundred fifty thousand, seventy-three".