80824939 has 16 divisors (see below), whose sum is σ = 89056800. Its totient is φ = 72898560.

The previous prime is 80824927. The next prime is 80824949. The reversal of 80824939 is 93942808.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80824939 - 2¹¹ = 80822891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80824895 and 80824904.

It is not an unprimeable number, because it can be changed into a prime (80824949) 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 15 ways as a sum of consecutive naturals, for example, 179787 + ... + 180235.

It is an arithmetic number, because the mean of its divisors is an integer number (5566050).

Almost surely, 2^80824939 is an apocalyptic number.

80824939 is a deficient number, since it is larger than the sum of its proper divisors (8231861).

80824939 is a wasteful number, since it uses less digits than its factorization.

80824939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 80824939 is about 8990.2691283409. The cubic root of 80824939 is about 432.3629405213.

The spelling of 80824939 in words is "eighty million, eight hundred twenty-four thousand, nine hundred thirty-nine".