86077973 has 2 divisors, whose sum is σ = 86077974. Its totient is φ = 86077972.

The previous prime is 86077963. The next prime is 86077997. The reversal of 86077973 is 37977068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77563249 + 8514724 = 8807^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 86077973 - 2⁶ = 86077909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86077913) 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, 43038986 + 43038987.

It is an arithmetic number, because the mean of its divisors is an integer number (43038987).

Almost surely, 2^86077973 is an apocalyptic number.

It is an amenable number.

86077973 is a deficient number, since it is larger than the sum of its proper divisors (1).

86077973 is an equidigital number, since it uses as much as digits as its factorization.

86077973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 86077973 is about 9277.8215654323. The cubic root of 86077973 is about 441.5338564167.

The spelling of 86077973 in words is "eighty-six million, seventy-seven thousand, nine hundred seventy-three".