80649883 has 2 divisors, whose sum is σ = 80649884. Its totient is φ = 80649882.

The previous prime is 80649857. The next prime is 80649901. The reversal of 80649883 is 38894608.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80649883 is a prime.

It is not a weakly prime, because it can be changed into another prime (80649083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40324941 + 40324942.

It is an arithmetic number, because the mean of its divisors is an integer number (40324942).

Almost surely, 2^80649883 is an apocalyptic number.

80649883 is a deficient number, since it is larger than the sum of its proper divisors (1).

80649883 is an equidigital number, since it uses as much as digits as its factorization.

80649883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 80649883 is about 8980.5279911595. The cubic root of 80649883 is about 432.0505681403.

The spelling of 80649883 in words is "eighty million, six hundred forty-nine thousand, eight hundred eighty-three".