98944561 has 2 divisors, whose sum is σ = 98944562. Its totient is φ = 98944560.

The previous prime is 98944553. The next prime is 98944589. The reversal of 98944561 is 16544989.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69622336 + 29322225 = 8344^2 + 5415^2 .

It is a cyclic number.

It is not a de Polignac number, because 98944561 - 2³ = 98944553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98944511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49472280 + 49472281.

It is an arithmetic number, because the mean of its divisors is an integer number (49472281).

Almost surely, 2^98944561 is an apocalyptic number.

It is an amenable number.

98944561 is a deficient number, since it is larger than the sum of its proper divisors (1).

98944561 is an equidigital number, since it uses as much as digits as its factorization.

98944561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

The square root of 98944561 is about 9947.0880663639. The cubic root of 98944561 is about 462.5201331387.

The spelling of 98944561 in words is "ninety-eight million, nine hundred forty-four thousand, five hundred sixty-one".