860450977 has 2 divisors, whose sum is σ = 860450978. Its totient is φ = 860450976.

The previous prime is 860450959. The next prime is 860451019. The reversal of 860450977 is 779054068.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549246096 + 311204881 = 23436^2 + 17641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-860450977 is a prime.

It is not a weakly prime, because it can be changed into another prime (860450377) 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, 430225488 + 430225489.

It is an arithmetic number, because the mean of its divisors is an integer number (430225489).

Almost surely, 2^860450977 is an apocalyptic number.

It is an amenable number.

860450977 is a deficient number, since it is larger than the sum of its proper divisors (1).

860450977 is an equidigital number, since it uses as much as digits as its factorization.

860450977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 860450977 is about 29333.4446835008. Note that the first 3 decimals coincide. The cubic root of 860450977 is about 951.1347389792.

The spelling of 860450977 in words is "eight hundred sixty million, four hundred fifty thousand, nine hundred seventy-seven".