98878123 has 2 divisors, whose sum is σ = 98878124. Its totient is φ = 98878122.

The previous prime is 98878121. The next prime is 98878141. The reversal of 98878123 is 32187889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98878123 - 2¹ = 98878121 is a prime.

Together with 98878121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (98878121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49439061 + 49439062.

It is an arithmetic number, because the mean of its divisors is an integer number (49439062).

Almost surely, 2^98878123 is an apocalyptic number.

98878123 is a deficient number, since it is larger than the sum of its proper divisors (1).

98878123 is an equidigital number, since it uses as much as digits as its factorization.

98878123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 46.

The square root of 98878123 is about 9943.7479352606. The cubic root of 98878123 is about 462.4165876358.

The spelling of 98878123 in words is "ninety-eight million, eight hundred seventy-eight thousand, one hundred twenty-three".