970321 has 4 divisors (see below), whose sum is σ = 1058544. Its totient is φ = 882100.

The previous prime is 970313. The next prime is 970351. The reversal of 970321 is 123079.

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 970321 - 2³ = 970313 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 970292 and 970301.

It is not an unprimeable number, because it can be changed into a prime (970351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44095 + ... + 44116.

It is an arithmetic number, because the mean of its divisors is an integer number (264636).

2⁹⁷⁰³²¹ is an apocalyptic number.

It is an amenable number.

970321 is a deficient number, since it is larger than the sum of its proper divisors (88223).

970321 is a wasteful number, since it uses less digits than its factorization.

970321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88222.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 970321 is about 985.0487297591. The cubic root of 970321 is about 99.0007482173. Note that the first 3 decimals are identical.

Subtracting from 970321 its sum of digits (22), we obtain a cube (970299 = 99³).

The spelling of 970321 in words is "nine hundred seventy thousand, three hundred twenty-one".