80329777 has 32 divisors (see below), whose sum is σ = 102021120. Its totient is φ = 62219520.

The previous prime is 80329771. The next prime is 80329801. The reversal of 80329777 is 77792308.

It is a de Polignac number, because none of the positive numbers 2^k-80329777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80329771) 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 31 ways as a sum of consecutive naturals, for example, 81228 + ... + 82210.

It is an arithmetic number, because the mean of its divisors is an integer number (3188160).

Almost surely, 2^80329777 is an apocalyptic number.

It is an amenable number.

80329777 is a deficient number, since it is larger than the sum of its proper divisors (21691343).

80329777 is a wasteful number, since it uses less digits than its factorization.

80329777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 80329777 is about 8962.6880454471. The cubic root of 80329777 is about 431.4781954934.

The spelling of 80329777 in words is "eighty million, three hundred twenty-nine thousand, seven hundred seventy-seven".