82685201 has 2 divisors, whose sum is σ = 82685202. Its totient is φ = 82685200.

The previous prime is 82685191. The next prime is 82685209. The reversal of 82685201 is 10258628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81360400 + 1324801 = 9020^2 + 1151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82685201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82685209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41342600 + 41342601.

It is an arithmetic number, because the mean of its divisors is an integer number (41342601).

Almost surely, 2^82685201 is an apocalyptic number.

It is an amenable number.

82685201 is a deficient number, since it is larger than the sum of its proper divisors (1).

82685201 is an equidigital number, since it uses as much as digits as its factorization.

82685201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 82685201 is about 9093.1403266418. The cubic root of 82685201 is about 435.6548923689.

The spelling of 82685201 in words is "eighty-two million, six hundred eighty-five thousand, two hundred one".