71956073 has 12 divisors (see below), whose sum is σ = 83006400. Its totient is φ = 61103640.

The previous prime is 71956067. The next prime is 71956081. The reversal of 71956073 is 37065917.

It is not a de Polignac number, because 71956073 - 2⁸ = 71955817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71956273) 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, 119828 + ... + 120426.

It is an arithmetic number, because the mean of its divisors is an integer number (6917200).

Almost surely, 2^71956073 is an apocalyptic number.

It is an amenable number.

71956073 is a deficient number, since it is larger than the sum of its proper divisors (11050327).

71956073 is an equidigital number, since it uses as much as digits as its factorization.

71956073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 71956073 is about 8482.6925560225. The cubic root of 71956073 is about 415.9321438416.

The spelling of 71956073 in words is "seventy-one million, nine hundred fifty-six thousand, seventy-three".