80446747 has 4 divisors (see below), whose sum is σ = 80480520. Its totient is φ = 80412976.

The previous prime is 80446733. The next prime is 80446781. The reversal of 80446747 is 74764408.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80446747 - 2¹¹ = 80444699 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80446447) 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 3 ways as a sum of consecutive naturals, for example, 13018 + ... + 18175.

It is an arithmetic number, because the mean of its divisors is an integer number (20120130).

Almost surely, 2^80446747 is an apocalyptic number.

80446747 is a deficient number, since it is larger than the sum of its proper divisors (33773).

80446747 is a wasteful number, since it uses less digits than its factorization.

80446747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33772.

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 80446747 is about 8969.2110578356. The cubic root of 80446747 is about 431.6875223017.

The spelling of 80446747 in words is "eighty million, four hundred forty-six thousand, seven hundred forty-seven".