98378279 has 2 divisors, whose sum is σ = 98378280. Its totient is φ = 98378278.

The previous prime is 98378263. The next prime is 98378321. The reversal of 98378279 is 97287389.

It is a weak prime.

It is an emirp because it is prime and its reverse (97287389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98378279 - 2⁴ = 98378263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98378279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98378209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49189139 + 49189140.

It is an arithmetic number, because the mean of its divisors is an integer number (49189140).

Almost surely, 2^98378279 is an apocalyptic number.

98378279 is a deficient number, since it is larger than the sum of its proper divisors (1).

98378279 is an equidigital number, since it uses as much as digits as its factorization.

98378279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 53.

The square root of 98378279 is about 9918.5825096130. The cubic root of 98378279 is about 461.6360754810.

The spelling of 98378279 in words is "ninety-eight million, three hundred seventy-eight thousand, two hundred seventy-nine".