76443073 has 16 divisors (see below), whose sum is σ = 91010304. Its totient is φ = 62838720.

The previous prime is 76443019. The next prime is 76443089. The reversal of 76443073 is 37034467.

76443073 = 117² + 118² + ... + 613².

It is not a de Polignac number, because 76443073 - 2²⁵ = 42888641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76443673) 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 15 ways as a sum of consecutive naturals, for example, 16311 + ... + 20467.

It is an arithmetic number, because the mean of its divisors is an integer number (5688144).

Almost surely, 2^76443073 is an apocalyptic number.

It is an amenable number.

76443073 is a deficient number, since it is larger than the sum of its proper divisors (14567231).

76443073 is a wasteful number, since it uses less digits than its factorization.

76443073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272.

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 76443073 is about 8743.1729366403. The cubic root of 76443073 is about 424.4039126711.

The spelling of 76443073 in words is "seventy-six million, four hundred forty-three thousand, seventy-three".