82630609 has 2 divisors, whose sum is σ = 82630610. Its totient is φ = 82630608.

The previous prime is 82630607. The next prime is 82630619. The reversal of 82630609 is 90603628.

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., 72846225 + 9784384 = 8535^2 + 3128^2 .

It is a cyclic number.

It is not a de Polignac number, because 82630609 - 2¹ = 82630607 is a prime.

It is a super-3 number, since 3×82630609³ (a number of 25 digits) contains 333 as substring.

Together with 82630607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82630607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41315304 + 41315305.

It is an arithmetic number, because the mean of its divisors is an integer number (41315305).

Almost surely, 2^82630609 is an apocalyptic number.

It is an amenable number.

82630609 is a deficient number, since it is larger than the sum of its proper divisors (1).

82630609 is an equidigital number, since it uses as much as digits as its factorization.

82630609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 82630609 is about 9090.1380077532. The cubic root of 82630609 is about 435.5589924668.

The spelling of 82630609 in words is "eighty-two million, six hundred thirty thousand, six hundred nine".