36306621 has 12 divisors (see below), whose sum is σ = 56477148. Its totient is φ = 22342464.

The previous prime is 36306553. The next prime is 36306649. The reversal of 36306621 is 12660363.

36306621 is a `hidden beast` number, since 3 + 6 + 30 + 6 + 621 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24651225 + 11655396 = 4965^2 + 3414^2 .

It is not a de Polignac number, because 36306621 - 2¹⁷ = 36175549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36306691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155040 + ... + 155273.

It is an arithmetic number, because the mean of its divisors is an integer number (4706429).

Almost surely, 2^36306621 is an apocalyptic number.

It is an amenable number.

36306621 is a deficient number, since it is larger than the sum of its proper divisors (20170527).

36306621 is a wasteful number, since it uses less digits than its factorization.

36306621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310332 (or 310329 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 36306621 is about 6025.4975728150. The cubic root of 36306621 is about 331.1275205905.

Adding to 36306621 its reverse (12660363), we get a palindrome (48966984).

The spelling of 36306621 in words is "thirty-six million, three hundred six thousand, six hundred twenty-one".