83308609 has 2 divisors, whose sum is σ = 83308610. Its totient is φ = 83308608.

The previous prime is 83308601. The next prime is 83308613. The reversal of 83308609 is 90680338.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42706225 + 40602384 = 6535^2 + 6372^2 .

It is a cyclic number.

It is not a de Polignac number, because 83308609 - 2³ = 83308601 is a prime.

It is not a weakly prime, because it can be changed into another prime (83308601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41654304 + 41654305.

It is an arithmetic number, because the mean of its divisors is an integer number (41654305).

Almost surely, 2^83308609 is an apocalyptic number.

It is an amenable number.

83308609 is a deficient number, since it is larger than the sum of its proper divisors (1).

83308609 is an equidigital number, since it uses as much as digits as its factorization.

83308609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 83308609 is about 9127.3549837836. The cubic root of 83308609 is about 436.7470307061.

The spelling of 83308609 in words is "eighty-three million, three hundred eight thousand, six hundred nine".