8020261 has 8 divisors (see below), whose sum is σ = 8809920. Its totient is φ = 7267392.

The previous prime is 8020253. The next prime is 8020273. The reversal of 8020261 is 1620208.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8020261 - 2³ = 8020253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8020241) 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 7 ways as a sum of consecutive naturals, for example, 8740 + ... + 9613.

It is an arithmetic number, because the mean of its divisors is an integer number (1101240).

Almost surely, 2^8020261 is an apocalyptic number.

It is an amenable number.

8020261 is a deficient number, since it is larger than the sum of its proper divisors (789659).

8020261 is a wasteful number, since it uses less digits than its factorization.

8020261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18395.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 8020261 is about 2832.0065324783. The cubic root of 8020261 is about 200.1686993293.

Adding to 8020261 its reverse (1620208), we get a palindrome (9640469).

It can be divided in two parts, 8020 and 261, that added together give a square (8281 = 91²).

The spelling of 8020261 in words is "eight million, twenty thousand, two hundred sixty-one".