820034801 has 4 divisors (see below), whose sum is σ = 855688512. Its totient is φ = 784381092.

The previous prime is 820034783. The next prime is 820034807. The reversal of 820034801 is 108430028.

820034801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-820034801 is a prime.

It is a super-2 number, since 2×820034801² = 1344914149702219202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (820034807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17826821 + ... + 17826866.

It is an arithmetic number, because the mean of its divisors is an integer number (213922128).

Almost surely, 2^820034801 is an apocalyptic number.

It is an amenable number.

820034801 is a deficient number, since it is larger than the sum of its proper divisors (35653711).

820034801 is a wasteful number, since it uses less digits than its factorization.

820034801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35653710.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 820034801 is about 28636.2497719237. The cubic root of 820034801 is about 936.0034033437.

Adding to 820034801 its reverse (108430028), we get a palindrome (928464829).

The spelling of 820034801 in words is "eight hundred twenty million, thirty-four thousand, eight hundred one".