82703609 has 2 divisors, whose sum is σ = 82703610. Its totient is φ = 82703608.

The previous prime is 82703603. The next prime is 82703611. The reversal of 82703609 is 90630728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68475625 + 14227984 = 8275^2 + 3772^2 .

It is a cyclic number.

It is not a de Polignac number, because 82703609 - 2⁸ = 82703353 is a prime.

Together with 82703611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82703603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41351804 + 41351805.

It is an arithmetic number, because the mean of its divisors is an integer number (41351805).

Almost surely, 2^82703609 is an apocalyptic number.

It is an amenable number.

82703609 is a deficient number, since it is larger than the sum of its proper divisors (1).

82703609 is an equidigital number, since it uses as much as digits as its factorization.

82703609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 82703609 is about 9094.1524618845. The cubic root of 82703609 is about 435.6872195572.

The spelling of 82703609 in words is "eighty-two million, seven hundred three thousand, six hundred nine".