964221 has 8 divisors (see below), whose sum is σ = 1330080. Its totient is φ = 620592.

The previous prime is 964219. The next prime is 964253. The reversal of 964221 is 122469.

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

It is not a de Polignac number, because 964221 - 2¹ = 964219 is a prime.

964221 is a lucky number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 964191 and 964200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964261) 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, 5455 + ... + 5628.

It is an arithmetic number, because the mean of its divisors is an integer number (166260).

2⁹⁶⁴²²¹ is an apocalyptic number.

It is an amenable number.

964221 is a deficient number, since it is larger than the sum of its proper divisors (365859).

964221 is a wasteful number, since it uses less digits than its factorization.

964221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11115.

The product of its digits is 864, while the sum is 24.

The square root of 964221 is about 981.9475546077. The cubic root of 964221 is about 98.7928532697.

The spelling of 964221 in words is "nine hundred sixty-four thousand, two hundred twenty-one".