36315821 has 8 divisors (see below), whose sum is σ = 38752320. Its totient is φ = 33931872.

The previous prime is 36315767. The next prime is 36315841. The reversal of 36315821 is 12851363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-36315821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36315841) 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 in 7 ways as a sum of consecutive naturals, for example, 11705 + ... + 14478.

It is an arithmetic number, because the mean of its divisors is an integer number (4844040).

Almost surely, 2^36315821 is an apocalyptic number.

It is an amenable number.

36315821 is a deficient number, since it is larger than the sum of its proper divisors (2436499).

36315821 is a wasteful number, since it uses less digits than its factorization.

36315821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26275.

The product of its digits is 4320, while the sum is 29.

The square root of 36315821 is about 6026.2609468890. The cubic root of 36315821 is about 331.1554871691.

The spelling of 36315821 in words is "thirty-six million, three hundred fifteen thousand, eight hundred twenty-one".