98288581 has 2 divisors, whose sum is σ = 98288582. Its totient is φ = 98288580.

The previous prime is 98288563. The next prime is 98288599. The reversal of 98288581 is 18588289.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (98288563) and next prime (98288599).

It can be written as a sum of positive squares in only one way, i.e., 97337956 + 950625 = 9866^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 98288581 - 2⁵ = 98288549 is a prime.

It is a super-2 number, since 2×98288581² = 19321290309987122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98288551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49144290 + 49144291.

It is an arithmetic number, because the mean of its divisors is an integer number (49144291).

Almost surely, 2^98288581 is an apocalyptic number.

It is an amenable number.

98288581 is a deficient number, since it is larger than the sum of its proper divisors (1).

98288581 is an equidigital number, since it uses as much as digits as its factorization.

98288581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 49.

The square root of 98288581 is about 9914.0597637900. The cubic root of 98288581 is about 461.4957314123.

The spelling of 98288581 in words is "ninety-eight million, two hundred eighty-eight thousand, five hundred eighty-one".