86511077 has 2 divisors, whose sum is σ = 86511078. Its totient is φ = 86511076.

The previous prime is 86511053. The next prime is 86511091. The reversal of 86511077 is 77011568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66161956 + 20349121 = 8134^2 + 4511^2 .

It is a cyclic number.

It is not a de Polignac number, because 86511077 - 2⁶ = 86511013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86511037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43255538 + 43255539.

It is an arithmetic number, because the mean of its divisors is an integer number (43255539).

Almost surely, 2^86511077 is an apocalyptic number.

It is an amenable number.

86511077 is a deficient number, since it is larger than the sum of its proper divisors (1).

86511077 is an equidigital number, since it uses as much as digits as its factorization.

86511077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 86511077 is about 9301.1331030149. The cubic root of 86511077 is about 442.2731483227.

The spelling of 86511077 in words is "eighty-six million, five hundred eleven thousand, seventy-seven".