82870807 has 2 divisors, whose sum is σ = 82870808. Its totient is φ = 82870806.

The previous prime is 82870793. The next prime is 82870811. The reversal of 82870807 is 70807828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82870807 - 2¹¹ = 82868759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82870807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82870897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41435403 + 41435404.

It is an arithmetic number, because the mean of its divisors is an integer number (41435404).

Almost surely, 2^82870807 is an apocalyptic number.

82870807 is a deficient number, since it is larger than the sum of its proper divisors (1).

82870807 is an equidigital number, since it uses as much as digits as its factorization.

82870807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 82870807 is about 9103.3404308528. The cubic root of 82870807 is about 435.9806247177.

The spelling of 82870807 in words is "eighty-two million, eight hundred seventy thousand, eight hundred seven".