36036921 has 16 divisors (see below), whose sum is σ = 49471488. Its totient is φ = 23322000.

The previous prime is 36036899. The next prime is 36036941. The reversal of 36036921 is 12963063.

It is a happy number.

It is not a de Polignac number, because 36036921 - 2¹⁰ = 36035897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36036941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17496 + ... + 19446.

It is an arithmetic number, because the mean of its divisors is an integer number (3091968).

Almost surely, 2^36036921 is an apocalyptic number.

It is an amenable number.

36036921 is a deficient number, since it is larger than the sum of its proper divisors (13434567).

36036921 is a wasteful number, since it uses less digits than its factorization.

36036921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 36036921 is about 6003.0759615384. The cubic root of 36036921 is about 330.3055663739.

Adding to 36036921 its reverse (12963063), we get a palindrome (48999984).

The spelling of 36036921 in words is "thirty-six million, thirty-six thousand, nine hundred twenty-one".