98140979 has 2 divisors, whose sum is σ = 98140980. Its totient is φ = 98140978.

The previous prime is 98140967. The next prime is 98141027. The reversal of 98140979 is 97904189.

It is a weak prime.

It is an emirp because it is prime and its reverse (97904189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98140979 - 2⁴ = 98140963 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (98140919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49070489 + 49070490.

It is an arithmetic number, because the mean of its divisors is an integer number (49070490).

Almost surely, 2^98140979 is an apocalyptic number.

98140979 is a deficient number, since it is larger than the sum of its proper divisors (1).

98140979 is an equidigital number, since it uses as much as digits as its factorization.

98140979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 98140979 is about 9906.6128924068. The cubic root of 98140979 is about 461.2646031075.

The spelling of 98140979 in words is "ninety-eight million, one hundred forty thousand, nine hundred seventy-nine".