86478467 has 2 divisors, whose sum is σ = 86478468. Its totient is φ = 86478466.

The previous prime is 86478421. The next prime is 86478487. The reversal of 86478467 is 76487468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86478467 - 2¹⁸ = 86216323 is a prime.

It is a super-3 number, since 3×86478467³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (86478407) 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, 43239233 + 43239234.

It is an arithmetic number, because the mean of its divisors is an integer number (43239234).

Almost surely, 2^86478467 is an apocalyptic number.

86478467 is a deficient number, since it is larger than the sum of its proper divisors (1).

86478467 is an equidigital number, since it uses as much as digits as its factorization.

86478467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1806336, while the sum is 50.

The square root of 86478467 is about 9299.3799255649. The cubic root of 86478467 is about 442.2175703150.

Subtracting from 86478467 its reverse (76487468), we obtain a palindrome (9990999).

The spelling of 86478467 in words is "eighty-six million, four hundred seventy-eight thousand, four hundred sixty-seven".