36036421 has 8 divisors (see below), whose sum is σ = 36756824. Its totient is φ = 35320320.

The previous prime is 36036401. The next prime is 36036437. The reversal of 36036421 is 12463063.

It can be written as a sum of positive squares in 4 ways, for example, as 3944196 + 32092225 = 1986^2 + 5665^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 36036421 - 2⁵ = 36036389 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 (36036401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19681 + ... + 21433.

It is an arithmetic number, because the mean of its divisors is an integer number (4594603).

Almost surely, 2^36036421 is an apocalyptic number.

It is an amenable number.

36036421 is a deficient number, since it is larger than the sum of its proper divisors (720403).

36036421 is a wasteful number, since it uses less digits than its factorization.

36036421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 36036421 is about 6003.0343160772. The cubic root of 36036421 is about 330.3040387412.

Adding to 36036421 its reverse (12463063), we get a palindrome (48499484).

The spelling of 36036421 in words is "thirty-six million, thirty-six thousand, four hundred twenty-one".