86801566 has 16 divisors (see below), whose sum is σ = 133459200. Its totient is φ = 42328728.

The previous prime is 86801531. The next prime is 86801569. The reversal of 86801566 is 66510868.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86801569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9805 + ... + 16423.

It is an arithmetic number, because the mean of its divisors is an integer number (8341200).

Almost surely, 2^86801566 is an apocalyptic number.

86801566 is a deficient number, since it is larger than the sum of its proper divisors (46657634).

86801566 is a wasteful number, since it uses less digits than its factorization.

86801566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 86801566 is about 9316.7358017709. The cubic root of 86801566 is about 442.7676204655.

The spelling of 86801566 in words is "eighty-six million, eight hundred one thousand, five hundred sixty-six".