80729676 has 24 divisors (see below), whose sum is σ = 209299440. Its totient is φ = 26909856.

The previous prime is 80729669. The next prime is 80729683. The reversal of 80729676 is 67692708.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80729669) and next prime (80729683).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373641 + ... + 373856.

It is an arithmetic number, because the mean of its divisors is an integer number (8720810).

Almost surely, 2^80729676 is an apocalyptic number.

It is an amenable number.

80729676 is an abundant number, since it is smaller than the sum of its proper divisors (128569764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80729676 is a wasteful number, since it uses less digits than its factorization.

80729676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747510 (or 747502 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 80729676 is about 8984.9694490299. The cubic root of 80729676 is about 432.1930078914.

The spelling of 80729676 in words is "eighty million, seven hundred twenty-nine thousand, six hundred seventy-six".