973962989 has 2 divisors, whose sum is σ = 973962990. Its totient is φ = 973962988.

The previous prime is 973962967. The next prime is 973963043. The reversal of 973962989 is 989269379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 931165225 + 42797764 = 30515^2 + 6542^2 .

It is a cyclic number.

It is not a de Polignac number, because 973962989 - 2²⁴ = 957185773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (973964989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486981494 + 486981495.

It is an arithmetic number, because the mean of its divisors is an integer number (486981495).

Almost surely, 2^973962989 is an apocalyptic number.

It is an amenable number.

973962989 is a deficient number, since it is larger than the sum of its proper divisors (1).

973962989 is an equidigital number, since it uses as much as digits as its factorization.

973962989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13226976, while the sum is 62.

The square root of 973962989 is about 31208.3801085542. The cubic root of 973962989 is about 991.2445623691.

The spelling of 973962989 in words is "nine hundred seventy-three million, nine hundred sixty-two thousand, nine hundred eighty-nine".