86936977 has 2 divisors, whose sum is σ = 86936978. Its totient is φ = 86936976.

The previous prime is 86936959. The next prime is 86937001. The reversal of 86936977 is 77963968.

It is a Cunningham number, because it is equal to 9324²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86936976 + 1 = 9324^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86936977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86936917) 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, 43468488 + 43468489.

It is an arithmetic number, because the mean of its divisors is an integer number (43468489).

Almost surely, 2^86936977 is an apocalyptic number.

It is an amenable number.

86936977 is a deficient number, since it is larger than the sum of its proper divisors (1).

86936977 is an equidigital number, since it uses as much as digits as its factorization.

86936977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 55.

The square root of 86936977 is about 9324.0000536251. Note that the first 4 decimals coincide. The cubic root of 86936977 is about 442.9977409536.

The spelling of 86936977 in words is "eighty-six million, nine hundred thirty-six thousand, nine hundred seventy-seven".