936021 has 4 divisors (see below), whose sum is σ = 1248032. Its totient is φ = 624012.

The previous prime is 936007. The next prime is 936029. The reversal of 936021 is 120639.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120639 = 3 ⋅40213.

It is not a de Polignac number, because 936021 - 2¹¹ = 933973 is a prime.

It is a super-2 number, since 2×936021² = 1752270624882, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 936021.

It is not an unprimeable number, because it can be changed into a prime (936029) 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, 156001 + ... + 156006.

It is an arithmetic number, because the mean of its divisors is an integer number (312008).

2⁹³⁶⁰²¹ is an apocalyptic number.

It is an amenable number.

936021 is a deficient number, since it is larger than the sum of its proper divisors (312011).

936021 is a wasteful number, since it uses less digits than its factorization.

936021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312010.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 936021 is about 967.4817827742. The cubic root of 936021 is about 97.8201964805.

The spelling of 936021 in words is "nine hundred thirty-six thousand, twenty-one".