98363987 has 2 divisors, whose sum is σ = 98363988. Its totient is φ = 98363986.

The previous prime is 98363981. The next prime is 98364011. The reversal of 98363987 is 78936389.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98363987 - 2⁴ = 98363971 is a prime.

It is not a weakly prime, because it can be changed into another prime (98363981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49181993 + 49181994.

It is an arithmetic number, because the mean of its divisors is an integer number (49181994).

Almost surely, 2^98363987 is an apocalyptic number.

98363987 is a deficient number, since it is larger than the sum of its proper divisors (1).

98363987 is an equidigital number, since it uses as much as digits as its factorization.

98363987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 53.

The square root of 98363987 is about 9917.8620175923. The cubic root of 98363987 is about 461.6137195220.

The spelling of 98363987 in words is "ninety-eight million, three hundred sixty-three thousand, nine hundred eighty-seven".