83078687 has 2 divisors, whose sum is σ = 83078688. Its totient is φ = 83078686.

The previous prime is 83078647. The next prime is 83078693. The reversal of 83078687 is 78687038.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83078687 - 2¹⁴ = 83062303 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 (83078627) 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, 41539343 + 41539344.

It is an arithmetic number, because the mean of its divisors is an integer number (41539344).

Almost surely, 2^83078687 is an apocalyptic number.

83078687 is a deficient number, since it is larger than the sum of its proper divisors (1).

83078687 is an equidigital number, since it uses as much as digits as its factorization.

83078687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 83078687 is about 9114.7510662662. The cubic root of 83078687 is about 436.3448702959.

The spelling of 83078687 in words is "eighty-three million, seventy-eight thousand, six hundred eighty-seven".