36028921 has 4 divisors (see below), whose sum is σ = 37925200. Its totient is φ = 34132644.

The previous prime is 36028919. The next prime is 36028957. The reversal of 36028921 is 12982063.

36028921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36028921 - 2¹ = 36028919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36028021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948111 + ... + 948148.

It is an arithmetic number, because the mean of its divisors is an integer number (9481300).

Almost surely, 2^36028921 is an apocalyptic number.

It is an amenable number.

36028921 is a deficient number, since it is larger than the sum of its proper divisors (1896279).

36028921 is a wasteful number, since it uses less digits than its factorization.

36028921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896278.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 36028921 is about 6002.4095994859. The cubic root of 36028921 is about 330.2811225534.

The spelling of 36028921 in words is "thirty-six million, twenty-eight thousand, nine hundred twenty-one".