82617949 has 2 divisors, whose sum is σ = 82617950. Its totient is φ = 82617948.

The previous prime is 82617919. The next prime is 82617961. The reversal of 82617949 is 94971628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75951225 + 6666724 = 8715^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 82617949 - 2¹³ = 82609757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82617899 and 82617908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82617919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41308974 + 41308975.

It is an arithmetic number, because the mean of its divisors is an integer number (41308975).

Almost surely, 2^82617949 is an apocalyptic number.

It is an amenable number.

82617949 is a deficient number, since it is larger than the sum of its proper divisors (1).

82617949 is an equidigital number, since it uses as much as digits as its factorization.

82617949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 82617949 is about 9089.4416220140. The cubic root of 82617949 is about 435.5367470441.

The spelling of 82617949 in words is "eighty-two million, six hundred seventeen thousand, nine hundred forty-nine".