82980361 has 2 divisors, whose sum is σ = 82980362. Its totient is φ = 82980360.

The previous prime is 82980347. The next prime is 82980367. The reversal of 82980361 is 16308928.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46498761 + 36481600 = 6819^2 + 6040^2 .

It is a cyclic number.

It is not a de Polignac number, because 82980361 - 2⁹ = 82979849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82980361.

It is not a weakly prime, because it can be changed into another prime (82980367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41490180 + 41490181.

It is an arithmetic number, because the mean of its divisors is an integer number (41490181).

Almost surely, 2^82980361 is an apocalyptic number.

It is an amenable number.

82980361 is a deficient number, since it is larger than the sum of its proper divisors (1).

82980361 is an equidigital number, since it uses as much as digits as its factorization.

82980361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 82980361 is about 9109.3556852282. The cubic root of 82980361 is about 436.1726601320.

The spelling of 82980361 in words is "eighty-two million, nine hundred eighty thousand, three hundred sixty-one".