36821384 has 8 divisors (see below), whose sum is σ = 69040110. Its totient is φ = 18410688.

The previous prime is 36821383. The next prime is 36821429. The reversal of 36821384 is 48312863.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24780484 + 12040900 = 4978^2 + 3470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (36821383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2301329 + ... + 2301344.

Almost surely, 2^36821384 is an apocalyptic number.

It is an amenable number.

36821384 is a deficient number, since it is larger than the sum of its proper divisors (32218726).

36821384 is a wasteful number, since it uses less digits than its factorization.

36821384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602679 (or 4602675 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 36821384 is about 6068.0626232761. The cubic root of 36821384 is about 332.6851144763.

The spelling of 36821384 in words is "thirty-six million, eight hundred twenty-one thousand, three hundred eighty-four".