86418890 has 16 divisors (see below), whose sum is σ = 157524480. Its totient is φ = 34129680.

The previous prime is 86418881. The next prime is 86418977. The reversal of 86418890 is 9881468.

It is a happy number.

It is a Curzon number.

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, 53906 + ... + 55485.

It is an arithmetic number, because the mean of its divisors is an integer number (9845280).

Almost surely, 2^86418890 is an apocalyptic number.

86418890 is a deficient number, since it is larger than the sum of its proper divisors (71105590).

86418890 is a wasteful number, since it uses less digits than its factorization.

86418890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109477.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 86418890 is about 9296.1760955782. The cubic root of 86418890 is about 442.1159957090.

The spelling of 86418890 in words is "eighty-six million, four hundred eighteen thousand, eight hundred ninety".