80234857 has 2 divisors, whose sum is σ = 80234858. Its totient is φ = 80234856.

The previous prime is 80234839. The next prime is 80234923. The reversal of 80234857 is 75843208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78481881 + 1752976 = 8859^2 + 1324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80234857 is a prime.

It is not a weakly prime, because it can be changed into another prime (80234807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40117428 + 40117429.

It is an arithmetic number, because the mean of its divisors is an integer number (40117429).

Almost surely, 2^80234857 is an apocalyptic number.

It is an amenable number.

80234857 is a deficient number, since it is larger than the sum of its proper divisors (1).

80234857 is an equidigital number, since it uses as much as digits as its factorization.

80234857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 80234857 is about 8957.3911938689. The cubic root of 80234857 is about 431.3081794503.

It can be divided in two parts, 8023 and 4857, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 80234857 in words is "eighty million, two hundred thirty-four thousand, eight hundred fifty-seven".