36339421 has 4 divisors (see below), whose sum is σ = 38477052. Its totient is φ = 34201792.

The previous prime is 36339403. The next prime is 36339431. The reversal of 36339421 is 12493363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12493363 = 3121 ⋅4003.

It can be written as a sum of positive squares in 2 ways, for example, as 34047225 + 2292196 = 5835^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 36339421 - 2⁷ = 36339293 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36339431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068790 + ... + 1068823.

It is an arithmetic number, because the mean of its divisors is an integer number (9619263).

Almost surely, 2^36339421 is an apocalyptic number.

It is an amenable number.

36339421 is a deficient number, since it is larger than the sum of its proper divisors (2137631).

36339421 is a wasteful number, since it uses less digits than its factorization.

36339421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137630.

The product of its digits is 11664, while the sum is 31.

The square root of 36339421 is about 6028.2187252952. The cubic root of 36339421 is about 331.2272059312.

The spelling of 36339421 in words is "thirty-six million, three hundred thirty-nine thousand, four hundred twenty-one".