98404457 has 2 divisors, whose sum is σ = 98404458. Its totient is φ = 98404456.

The previous prime is 98404433. The next prime is 98404459. The reversal of 98404457 is 75440489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77510416 + 20894041 = 8804^2 + 4571^2 .

It is a cyclic number.

It is not a de Polignac number, because 98404457 - 2⁶ = 98404393 is a prime.

Together with 98404459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98404459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49202228 + 49202229.

It is an arithmetic number, because the mean of its divisors is an integer number (49202229).

Almost surely, 2^98404457 is an apocalyptic number.

It is an amenable number.

98404457 is a deficient number, since it is larger than the sum of its proper divisors (1).

98404457 is an equidigital number, since it uses as much as digits as its factorization.

98404457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 98404457 is about 9919.9020660488. The cubic root of 98404457 is about 461.6770182500.

The spelling of 98404457 in words is "ninety-eight million, four hundred four thousand, four hundred fifty-seven".