98937521 has 2 divisors, whose sum is σ = 98937522. Its totient is φ = 98937520.

The previous prime is 98937463. The next prime is 98937529. The reversal of 98937521 is 12573989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96805921 + 2131600 = 9839^2 + 1460^2 .

It is an emirp because it is prime and its reverse (12573989) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98937521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98937529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49468760 + 49468761.

It is an arithmetic number, because the mean of its divisors is an integer number (49468761).

Almost surely, 2^98937521 is an apocalyptic number.

It is an amenable number.

98937521 is a deficient number, since it is larger than the sum of its proper divisors (1).

98937521 is an equidigital number, since it uses as much as digits as its factorization.

98937521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 44.

The square root of 98937521 is about 9946.7341876618. The cubic root of 98937521 is about 462.5091632954.

The spelling of 98937521 in words is "ninety-eight million, nine hundred thirty-seven thousand, five hundred twenty-one".