36438023 has 4 divisors (see below), whose sum is σ = 36937248. Its totient is φ = 35938800.

The previous prime is 36438013. The next prime is 36438037. The reversal of 36438023 is 32083463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36438023 - 2⁶ = 36437959 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 (36438013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249503 + ... + 249648.

It is an arithmetic number, because the mean of its divisors is an integer number (9234312).

Almost surely, 2^36438023 is an apocalyptic number.

36438023 is a deficient number, since it is larger than the sum of its proper divisors (499225).

36438023 is an equidigital number, since it uses as much as digits as its factorization.

36438023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499224.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 36438023 is about 6036.3915545630. The cubic root of 36438023 is about 331.5265151419.

The spelling of 36438023 in words is "thirty-six million, four hundred thirty-eight thousand, twenty-three".