99987683 has 2 divisors, whose sum is σ = 99987684. Its totient is φ = 99987682.

The previous prime is 99987619. The next prime is 99987691. The reversal of 99987683 is 38678999.

It is a strong prime.

It is an emirp because it is prime and its reverse (38678999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99987683 - 2⁶ = 99987619 is a prime.

It is not a weakly prime, because it can be changed into another prime (99987883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49993841 + 49993842.

It is an arithmetic number, because the mean of its divisors is an integer number (49993842).

Almost surely, 2^99987683 is an apocalyptic number.

99987683 is a deficient number, since it is larger than the sum of its proper divisors (1).

99987683 is an equidigital number, since it uses as much as digits as its factorization.

99987683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 59.

The square root of 99987683 is about 9999.3841310353. The cubic root of 99987683 is about 464.1398257623.

The spelling of 99987683 in words is "ninety-nine million, nine hundred eighty-seven thousand, six hundred eighty-three".