82700399 has 2 divisors, whose sum is σ = 82700400. Its totient is φ = 82700398.

The previous prime is 82700389. The next prime is 82700411. The reversal of 82700399 is 99300728.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82700399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82700329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41350199 + 41350200.

It is an arithmetic number, because the mean of its divisors is an integer number (41350200).

Almost surely, 2^82700399 is an apocalyptic number.

82700399 is a deficient number, since it is larger than the sum of its proper divisors (1).

82700399 is an equidigital number, since it uses as much as digits as its factorization.

82700399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 82700399 is about 9093.9759731374. The cubic root of 82700399 is about 435.6815826647.

The spelling of 82700399 in words is "eighty-two million, seven hundred thousand, three hundred ninety-nine".