970309 has 4 divisors (see below), whose sum is σ = 1027404. Its totient is φ = 913216.

The previous prime is 970303. The next prime is 970313. The reversal of 970309 is 903079.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 494209 + 476100 = 703^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 970309 - 2⁹ = 969797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970303) 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, 28522 + ... + 28555.

It is an arithmetic number, because the mean of its divisors is an integer number (256851).

2⁹⁷⁰³⁰⁹ is an apocalyptic number.

It is an amenable number.

970309 is a deficient number, since it is larger than the sum of its proper divisors (57095).

970309 is a wasteful number, since it uses less digits than its factorization.

970309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57094.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 970309 is about 985.0426386710. The cubic root of 970309 is about 99.0003401002. Note that the first 3 decimals are identical.

The spelling of 970309 in words is "nine hundred seventy thousand, three hundred nine".