86430778 has 16 divisors (see below), whose sum is σ = 150597504. Its totient is φ = 36434160.

The previous prime is 86430749. The next prime is 86430793. The reversal of 86430778 is 87703468.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 49750 + ... + 51457.

It is an arithmetic number, because the mean of its divisors is an integer number (9412344).

Almost surely, 2^86430778 is an apocalyptic number.

86430778 is a deficient number, since it is larger than the sum of its proper divisors (64166726).

86430778 is a wasteful number, since it uses less digits than its factorization.

86430778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101277.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 86430778 is about 9296.8154762800. The cubic root of 86430778 is about 442.1362676425.

The spelling of 86430778 in words is "eighty-six million, four hundred thirty thousand, seven hundred seventy-eight".