80684747 has 8 divisors (see below), whose sum is σ = 94790640. Its totient is φ = 67707360.

The previous prime is 80684731. The next prime is 80684777. The reversal of 80684747 is 74748608.

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 80684747 - 2⁴ = 80684731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80684698 and 80684707.

It is not an unprimeable number, because it can be changed into a prime (80684707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281972 + ... + 282257.

It is an arithmetic number, because the mean of its divisors is an integer number (11848830).

Almost surely, 2^80684747 is an apocalyptic number.

80684747 is a deficient number, since it is larger than the sum of its proper divisors (14105893).

80684747 is a wasteful number, since it uses less digits than its factorization.

80684747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564253.

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 80684747 is about 8982.4688699711. The cubic root of 80684747 is about 432.1128159719.

The spelling of 80684747 in words is "eighty million, six hundred eighty-four thousand, seven hundred forty-seven".