86466481 has 2 divisors, whose sum is σ = 86466482. Its totient is φ = 86466480.

The previous prime is 86466469. The next prime is 86466491. The reversal of 86466481 is 18466468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78854400 + 7612081 = 8880^2 + 2759^2 .

It is a cyclic number.

It is not a de Polignac number, because 86466481 - 2⁷ = 86466353 is a prime.

It is a super-2 number, since 2×86466481² = 14952904673046722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86466431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43233240 + 43233241.

It is an arithmetic number, because the mean of its divisors is an integer number (43233241).

Almost surely, 2^86466481 is an apocalyptic number.

It is an amenable number.

86466481 is a deficient number, since it is larger than the sum of its proper divisors (1).

86466481 is an equidigital number, since it uses as much as digits as its factorization.

86466481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 43.

The square root of 86466481 is about 9298.7354516622. The cubic root of 86466481 is about 442.1971387753.

The spelling of 86466481 in words is "eighty-six million, four hundred sixty-six thousand, four hundred eighty-one".