80923849 has 2 divisors, whose sum is σ = 80923850. Its totient is φ = 80923848.

The previous prime is 80923823. The next prime is 80923853. The reversal of 80923849 is 94832908.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78499600 + 2424249 = 8860^2 + 1557^2 .

It is a cyclic number.

It is not a de Polignac number, because 80923849 - 2¹³ = 80915657 is a prime.

It is not a weakly prime, because it can be changed into another prime (80923819) 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 as a sum of consecutive naturals, namely, 40461924 + 40461925.

It is an arithmetic number, because the mean of its divisors is an integer number (40461925).

Almost surely, 2^80923849 is an apocalyptic number.

It is an amenable number.

80923849 is a deficient number, since it is larger than the sum of its proper divisors (1).

80923849 is an equidigital number, since it uses as much as digits as its factorization.

80923849 is an odious number, because the sum of its binary digits is odd.

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

The square root of 80923849 is about 8995.7683940840. The cubic root of 80923849 is about 432.5392375330.

The spelling of 80923849 in words is "eighty million, nine hundred twenty-three thousand, eight hundred forty-nine".