9780973 has 2 divisors, whose sum is σ = 9780974. Its totient is φ = 9780972.

The previous prime is 9780971. The next prime is 9780989. The reversal of 9780973 is 3790879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 59049 = 3118^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 9780973 - 2¹ = 9780971 is a prime.

Together with 9780971, it forms a pair of twin primes.

9780973 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9780971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4890486 + 4890487.

It is an arithmetic number, because the mean of its divisors is an integer number (4890487).

Almost surely, 2^9780973 is an apocalyptic number.

It is an amenable number.

9780973 is a deficient number, since it is larger than the sum of its proper divisors (1).

9780973 is an equidigital number, since it uses as much as digits as its factorization.

9780973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 9780973 is about 3127.4547158992. The cubic root of 9780973 is about 213.8589121561.

The spelling of 9780973 in words is "nine million, seven hundred eighty thousand, nine hundred seventy-three".