36336421 has 6 divisors (see below), whose sum is σ = 39940166. Its totient is φ = 33033000.

The previous prime is 36336409. The next prime is 36336431. The reversal of 36336421 is 12463363.

It can be written as a sum of positive squares in only one way, i.e., 27185796 + 9150625 = 5214^2 + 3025^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36336421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36336421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36336431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150030 + ... + 150271.

Almost surely, 2^36336421 is an apocalyptic number.

It is an amenable number.

36336421 is a deficient number, since it is larger than the sum of its proper divisors (3603745).

36336421 is a wasteful number, since it uses less digits than its factorization.

36336421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300323 (or 300312 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 36336421 is about 6027.9698904358. The cubic root of 36336421 is about 331.2180908625.

Adding to 36336421 its reverse (12463363), we get a palindrome (48799784).

The spelling of 36336421 in words is "thirty-six million, three hundred thirty-six thousand, four hundred twenty-one".