80838077 has 24 divisors (see below), whose sum is σ = 91377720. Its totient is φ = 71244800.

The previous prime is 80838071. The next prime is 80838097. The reversal of 80838077 is 77083808.

It can be written as a sum of positive squares in 4 ways, for example, as 30980356 + 49857721 = 5566^2 + 7061^2 .

It is not a de Polignac number, because 80838077 - 2⁴ = 80838061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80838071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 800327 + ... + 800427.

It is an arithmetic number, because the mean of its divisors is an integer number (3807405).

Almost surely, 2^80838077 is an apocalyptic number.

It is an amenable number.

80838077 is a deficient number, since it is larger than the sum of its proper divisors (10539643).

80838077 is a wasteful number, since it uses less digits than its factorization.

80838077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 80838077 is about 8990.9997775553. Note that the first 3 decimals coincide. The cubic root of 80838077 is about 432.3863659501.

The spelling of 80838077 in words is "eighty million, eight hundred thirty-eight thousand, seventy-seven".