536620821 has 8 divisors (see below), whose sum is σ = 780539424. Its totient is φ = 325224720.

The previous prime is 536620811. The next prime is 536620829. The reversal of 536620821 is 128026635.

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

It is not a de Polignac number, because 536620821 - 2⁵ = 536620789 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 16261237 = 536620821 / (5 + 3 + 6 + 6 + 2 + 0 + 8 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536620829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8130586 + ... + 8130651.

It is an arithmetic number, because the mean of its divisors is an integer number (97567428).

Almost surely, 2^536620821 is an apocalyptic number.

It is an amenable number.

536620821 is a deficient number, since it is larger than the sum of its proper divisors (243918603).

536620821 is a wasteful number, since it uses less digits than its factorization.

536620821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16261251.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 536620821 is about 23165.0776169647. The cubic root of 536620821 is about 812.6231177849.

The spelling of 536620821 in words is "five hundred thirty-six million, six hundred twenty thousand, eight hundred twenty-one".