98718401 has 2 divisors, whose sum is σ = 98718402. Its totient is φ = 98718400.

The previous prime is 98718397. The next prime is 98718413. The reversal of 98718401 is 10481789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95746225 + 2972176 = 9785^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 98718401 - 2² = 98718397 is a prime.

It is a super-3 number, since 3×98718401³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (98718481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49359200 + 49359201.

It is an arithmetic number, because the mean of its divisors is an integer number (49359201).

Almost surely, 2^98718401 is an apocalyptic number.

It is an amenable number.

98718401 is a deficient number, since it is larger than the sum of its proper divisors (1).

98718401 is an equidigital number, since it uses as much as digits as its factorization.

98718401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 98718401 is about 9935.7134117284. The cubic root of 98718401 is about 462.1674664470.

The spelling of 98718401 in words is "ninety-eight million, seven hundred eighteen thousand, four hundred one".