83965489 has 2 divisors, whose sum is σ = 83965490. Its totient is φ = 83965488.

The previous prime is 83965481. The next prime is 83965517. The reversal of 83965489 is 98456938.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73616400 + 10349089 = 8580^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 83965489 - 2³ = 83965481 is a prime.

It is not a weakly prime, because it can be changed into another prime (83965481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41982744 + 41982745.

It is an arithmetic number, because the mean of its divisors is an integer number (41982745).

Almost surely, 2^83965489 is an apocalyptic number.

It is an amenable number.

83965489 is a deficient number, since it is larger than the sum of its proper divisors (1).

83965489 is an equidigital number, since it uses as much as digits as its factorization.

83965489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 52.

The square root of 83965489 is about 9163.2684670919. The cubic root of 83965489 is about 437.8919289537.

The spelling of 83965489 in words is "eighty-three million, nine hundred sixty-five thousand, four hundred eighty-nine".