98278123 has 2 divisors, whose sum is σ = 98278124. Its totient is φ = 98278122.

The previous prime is 98278099. The next prime is 98278163. The reversal of 98278123 is 32187289.

It is an a-pointer prime, because the next prime (98278163) can be obtained adding 98278123 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98278123 is a prime.

It is not a weakly prime, because it can be changed into another prime (98278163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49139061 + 49139062.

It is an arithmetic number, because the mean of its divisors is an integer number (49139062).

Almost surely, 2^98278123 is an apocalyptic number.

98278123 is a deficient number, since it is larger than the sum of its proper divisors (1).

98278123 is an equidigital number, since it uses as much as digits as its factorization.

98278123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 98278123 is about 9913.5323169897. The cubic root of 98278123 is about 461.4793629678.

The spelling of 98278123 in words is "ninety-eight million, two hundred seventy-eight thousand, one hundred twenty-three".