76840576 has 16 divisors (see below), whose sum is σ = 153081090. Its totient is φ = 38420224.

The previous prime is 76840571. The next prime is 76840609. The reversal of 76840576 is 67504867.

It can be written as a sum of positive squares in only one way, i.e., 75342400 + 1498176 = 8680^2 + 1224^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (76840571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300031 + ... + 300286.

Almost surely, 2^76840576 is an apocalyptic number.

It is an amenable number.

76840576 is a deficient number, since it is larger than the sum of its proper divisors (76240514).

76840576 is an equidigital number, since it uses as much as digits as its factorization.

76840576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600331 (or 600319 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 76840576 is about 8765.8756550615. The cubic root of 76840576 is about 425.1382728861.

The spelling of 76840576 in words is "seventy-six million, eight hundred forty thousand, five hundred seventy-six".