536320621 has 4 divisors (see below), whose sum is σ = 546439932. Its totient is φ = 526201312.

The previous prime is 536320597. The next prime is 536320627. The reversal of 536320621 is 126023635.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145467721 + 390852900 = 12061^2 + 19770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-536320621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 536320621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (536320627) 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, 5059576 + ... + 5059681.

It is an arithmetic number, because the mean of its divisors is an integer number (136609983).

Almost surely, 2^536320621 is an apocalyptic number.

It is an amenable number.

536320621 is a deficient number, since it is larger than the sum of its proper divisors (10119311).

536320621 is a wasteful number, since it uses less digits than its factorization.

536320621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119310.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 536320621 is about 23158.5971293600. The cubic root of 536320621 is about 812.4715551699.

The spelling of 536320621 in words is "five hundred thirty-six million, three hundred twenty thousand, six hundred twenty-one".