963021 has 4 divisors (see below), whose sum is σ = 1284032. Its totient is φ = 642012.

The previous prime is 963019. The next prime is 963031. The reversal of 963021 is 120369.

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: 120369 = 3 ⋅40123.

It is not a de Polignac number, because 963021 - 2¹ = 963019 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (963031) 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, 160501 + ... + 160506.

It is an arithmetic number, because the mean of its divisors is an integer number (321008).

2⁹⁶³⁰²¹ is an apocalyptic number.

It is an amenable number.

963021 is a deficient number, since it is larger than the sum of its proper divisors (321011).

963021 is a wasteful number, since it uses less digits than its factorization.

963021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321010.

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

The square root of 963021 is about 981.3363337816. The cubic root of 963021 is about 98.7518527666.

The spelling of 963021 in words is "nine hundred sixty-three thousand, twenty-one".