989583461 has 2 divisors, whose sum is σ = 989583462. Its totient is φ = 989583460.

The previous prime is 989583437. The next prime is 989583659. The reversal of 989583461 is 164385989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981568900 + 8014561 = 31330^2 + 2831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989583461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989583431) 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, 494791730 + 494791731.

It is an arithmetic number, because the mean of its divisors is an integer number (494791731).

Almost surely, 2^989583461 is an apocalyptic number.

It is an amenable number.

989583461 is a deficient number, since it is larger than the sum of its proper divisors (1).

989583461 is an equidigital number, since it uses as much as digits as its factorization.

989583461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The square root of 989583461 is about 31457.6455094783. The cubic root of 989583461 is about 996.5156940456.

The spelling of 989583461 in words is "nine hundred eighty-nine million, five hundred eighty-three thousand, four hundred sixty-one".