98451979 has 2 divisors, whose sum is σ = 98451980. Its totient is φ = 98451978.

The previous prime is 98451973. The next prime is 98452007. The reversal of 98451979 is 97915489.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98451979 - 2³ = 98451971 is a prime.

It is not a weakly prime, because it can be changed into another prime (98451971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49225989 + 49225990.

It is an arithmetic number, because the mean of its divisors is an integer number (49225990).

Almost surely, 2^98451979 is an apocalyptic number.

98451979 is a deficient number, since it is larger than the sum of its proper divisors (1).

98451979 is an equidigital number, since it uses as much as digits as its factorization.

98451979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 52.

The square root of 98451979 is about 9922.2970626766. The cubic root of 98451979 is about 461.7513247909.

The spelling of 98451979 in words is "ninety-eight million, four hundred fifty-one thousand, nine hundred seventy-nine".