970756321 has 8 divisors (see below), whose sum is σ = 1047254184. Its totient is φ = 896413440.

The previous prime is 970756313. The next prime is 970756327. The reversal of 970756321 is 123657079.

970756321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 298080225 + 672676096 = 17265^2 + 25936^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 970756321 - 2³ = 970756313 is a prime.

It is a super-2 number, since 2×970756321² = 1884735669522910082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (970756327) 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, 537810 + ... + 539611.

It is an arithmetic number, because the mean of its divisors is an integer number (130906773).

Almost surely, 2^970756321 is an apocalyptic number.

It is an amenable number.

970756321 is a deficient number, since it is larger than the sum of its proper divisors (76497863).

970756321 is a wasteful number, since it uses less digits than its factorization.

970756321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077491.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 970756321 is about 31156.9626407967. The cubic root of 970756321 is about 990.1555110603.

The spelling of 970756321 in words is "nine hundred seventy million, seven hundred fifty-six thousand, three hundred twenty-one".