98220745 has 24 divisors (see below), whose sum is σ = 138555144. Its totient is φ = 66640896.

The previous prime is 98220743. The next prime is 98220751. The reversal of 98220745 is 54702289.

It can be written as a sum of positive squares in 4 ways, for example, as 16426809 + 81793936 = 4053^2 + 9044^2 .

It is not a de Polignac number, because 98220745 - 2¹ = 98220743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98220743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21699 + ... + 25831.

It is an arithmetic number, because the mean of its divisors is an integer number (5773131).

Almost surely, 2^98220745 is an apocalyptic number.

It is an amenable number.

98220745 is a deficient number, since it is larger than the sum of its proper divisors (40334399).

98220745 is a wasteful number, since it uses less digits than its factorization.

98220745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249 (or 4242 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 98220745 is about 9910.6379713922. The cubic root of 98220745 is about 461.3895365419.

The spelling of 98220745 in words is "ninety-eight million, two hundred twenty thousand, seven hundred forty-five".