36421605 has 36 divisors (see below), whose sum is σ = 69402060. Its totient is φ = 17656320.

The previous prime is 36421601. The next prime is 36421639. The reversal of 36421605 is 50612463.

36421605 is a `hidden beast` number, since 3 + 642 + 16 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22268961 + 14152644 = 4719^2 + 3762^2 .

It is not a de Polignac number, because 36421605 - 2² = 36421601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36421601) 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 35 ways as a sum of consecutive naturals, for example, 2101 + ... + 8789.

It is an arithmetic number, because the mean of its divisors is an integer number (1927835).

Almost surely, 2^36421605 is an apocalyptic number.

It is an amenable number.

36421605 is a deficient number, since it is larger than the sum of its proper divisors (32980455).

36421605 is a wasteful number, since it uses less digits than its factorization.

36421605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6722 (or 6708 counting only the distinct ones).

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

The square root of 36421605 is about 6035.0314829336. The cubic root of 36421605 is about 331.4767153305.

The spelling of 36421605 in words is "thirty-six million, four hundred twenty-one thousand, six hundred five".