71776073 has 8 divisors (see below), whose sum is σ = 75979200. Its totient is φ = 67688208.

The previous prime is 71776069. The next prime is 71776087. The reversal of 71776073 is 37067717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71776073 - 2² = 71776069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71776043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27533 + ... + 30026.

It is an arithmetic number, because the mean of its divisors is an integer number (9497400).

Almost surely, 2^71776073 is an apocalyptic number.

It is an amenable number.

71776073 is a deficient number, since it is larger than the sum of its proper divisors (4203127).

71776073 is a wasteful number, since it uses less digits than its factorization.

71776073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57631.

The product of its (nonzero) digits is 43218, while the sum is 38.

The square root of 71776073 is about 8472.0760737850. The cubic root of 71776073 is about 415.5850325296.

The spelling of 71776073 in words is "seventy-one million, seven hundred seventy-six thousand, seventy-three".