98726657 has 2 divisors, whose sum is σ = 98726658. Its totient is φ = 98726656.

The previous prime is 98726629. The next prime is 98726659. The reversal of 98726657 is 75662789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69739201 + 28987456 = 8351^2 + 5384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98726657 is a prime.

Together with 98726659, 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 (98726659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49363328 + 49363329.

It is an arithmetic number, because the mean of its divisors is an integer number (49363329).

Almost surely, 2^98726657 is an apocalyptic number.

It is an amenable number.

98726657 is a deficient number, since it is larger than the sum of its proper divisors (1).

98726657 is an equidigital number, since it uses as much as digits as its factorization.

98726657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 50.

The square root of 98726657 is about 9936.1288739629. The cubic root of 98726657 is about 462.1803500573.

The spelling of 98726657 in words is "ninety-eight million, seven hundred twenty-six thousand, six hundred fifty-seven".