20486801 has 4 divisors (see below), whose sum is σ = 20498100. Its totient is φ = 20475504.

The previous prime is 20486797. The next prime is 20486831. The reversal of 20486801 is 10868402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11937025 + 8549776 = 3455^2 + 2924^2 .

It is a cyclic number.

It is not a de Polignac number, because 20486801 - 2² = 20486797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20486831) 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 3 ways as a sum of consecutive naturals, for example, 2246 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (5124525).

Almost surely, 2^20486801 is an apocalyptic number.

It is an amenable number.

20486801 is a deficient number, since it is larger than the sum of its proper divisors (11299).

20486801 is an equidigital number, since it uses as much as digits as its factorization.

20486801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11298.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 20486801 is about 4526.2347486625. The cubic root of 20486801 is about 273.6264333936.

The spelling of 20486801 in words is "twenty million, four hundred eighty-six thousand, eight hundred one".