86466491 has 2 divisors, whose sum is σ = 86466492. Its totient is φ = 86466490.

The previous prime is 86466481. The next prime is 86466517. The reversal of 86466491 is 19466468.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86466491 is a prime.

It is a Chen prime.

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, 43233245 + 43233246.

It is an arithmetic number, because the mean of its divisors is an integer number (43233246).

Almost surely, 2^86466491 is an apocalyptic number.

86466491 is a deficient number, since it is larger than the sum of its proper divisors (1).

86466491 is an equidigital number, since it uses as much as digits as its factorization.

86466491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 44.

The square root of 86466491 is about 9298.7359893697. The cubic root of 86466491 is about 442.1971558222.

The spelling of 86466491 in words is "eighty-six million, four hundred sixty-six thousand, four hundred ninety-one".