86021801 has 16 divisors (see below), whose sum is σ = 92093760. Its totient is φ = 80203200.

The previous prime is 86021753. The next prime is 86021821. The reversal of 86021801 is 10812068.

It is a cyclic number.

It is not a de Polignac number, because 86021801 - 2⁶ = 86021737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86021821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125606 + ... + 126288.

It is an arithmetic number, because the mean of its divisors is an integer number (5755860).

Almost surely, 2^86021801 is an apocalyptic number.

It is an amenable number.

86021801 is a deficient number, since it is larger than the sum of its proper divisors (6071959).

86021801 is a wasteful number, since it uses less digits than its factorization.

86021801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 86021801 is about 9274.7938521565. The cubic root of 86021801 is about 441.4377914349.

Adding to 86021801 its reverse (10812068), we get a palindrome (96833869).

The spelling of 86021801 in words is "eighty-six million, twenty-one thousand, eight hundred one".