82807397 has 2 divisors, whose sum is σ = 82807398. Its totient is φ = 82807396.

The previous prime is 82807313. The next prime is 82807411. The reversal of 82807397 is 79370828.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73376356 + 9431041 = 8566^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 82807397 - 2⁸ = 82807141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82807897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41403698 + 41403699.

It is an arithmetic number, because the mean of its divisors is an integer number (41403699).

Almost surely, 2^82807397 is an apocalyptic number.

It is an amenable number.

82807397 is a deficient number, since it is larger than the sum of its proper divisors (1).

82807397 is an equidigital number, since it uses as much as digits as its factorization.

82807397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 82807397 is about 9099.8569768980. The cubic root of 82807397 is about 435.8693970266.

The spelling of 82807397 in words is "eighty-two million, eight hundred seven thousand, three hundred ninety-seven".