83687099 has 2 divisors, whose sum is σ = 83687100. Its totient is φ = 83687098.

The previous prime is 83687089. The next prime is 83687101. The reversal of 83687099 is 99078638.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83687099 - 2²⁴ = 66909883 is a prime.

Together with 83687101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83687089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41843549 + 41843550.

It is an arithmetic number, because the mean of its divisors is an integer number (41843550).

Almost surely, 2^83687099 is an apocalyptic number.

83687099 is a deficient number, since it is larger than the sum of its proper divisors (1).

83687099 is an equidigital number, since it uses as much as digits as its factorization.

83687099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 83687099 is about 9148.0653145897. The cubic root of 83687099 is about 437.4074453463.

The spelling of 83687099 in words is "eighty-three million, six hundred eighty-seven thousand, ninety-nine".