98377681 has 2 divisors, whose sum is σ = 98377682. Its totient is φ = 98377680.

The previous prime is 98377621. The next prime is 98377703. The reversal of 98377681 is 18677389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98327056 + 50625 = 9916^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 98377681 - 2⁷ = 98377553 is a prime.

It is a super-2 number, since 2×98377681² = 19356336237875522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98377621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49188840 + 49188841.

It is an arithmetic number, because the mean of its divisors is an integer number (49188841).

Almost surely, 2^98377681 is an apocalyptic number.

It is an amenable number.

98377681 is a deficient number, since it is larger than the sum of its proper divisors (1).

98377681 is an equidigital number, since it uses as much as digits as its factorization.

98377681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 98377681 is about 9918.5523641306. The cubic root of 98377681 is about 461.6351401155.

The spelling of 98377681 in words is "ninety-eight million, three hundred seventy-seven thousand, six hundred eighty-one".