36045621 has 8 divisors (see below), whose sum is σ = 53400960. Its totient is φ = 24030396.

The previous prime is 36045617. The next prime is 36045649. The reversal of 36045621 is 12654063.

36045621 is a `hidden beast` number, since 3 + 604 + 56 + 2 + 1 = 666.

It is not a de Polignac number, because 36045621 - 2² = 36045617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1335023 = 36045621 / (3 + 6 + 0 + 4 + 5 + 6 + 2 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36045421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667485 + ... + 667538.

It is an arithmetic number, because the mean of its divisors is an integer number (6675120).

Almost surely, 2^36045621 is an apocalyptic number.

It is an amenable number.

36045621 is a deficient number, since it is larger than the sum of its proper divisors (17355339).

36045621 is a wasteful number, since it uses less digits than its factorization.

36045621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335032 (or 1335026 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 36045621 is about 6003.8005463206. The cubic root of 36045621 is about 330.3321449229.

Adding to 36045621 its reverse (12654063), we get a palindrome (48699684).

The spelling of 36045621 in words is "thirty-six million, forty-five thousand, six hundred twenty-one".