98456381 has 2 divisors, whose sum is σ = 98456382. Its totient is φ = 98456380.

The previous prime is 98456377. The next prime is 98456387. The reversal of 98456381 is 18365489.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94750756 + 3705625 = 9734^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 98456381 - 2² = 98456377 is a prime.

It is a super-2 number, since 2×98456381² = 19387317919234322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_5677757 and since 98456381 and 5677757 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98456387) 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, 49228190 + 49228191.

It is an arithmetic number, because the mean of its divisors is an integer number (49228191).

Almost surely, 2^98456381 is an apocalyptic number.

It is an amenable number.

98456381 is a deficient number, since it is larger than the sum of its proper divisors (1).

98456381 is an equidigital number, since it uses as much as digits as its factorization.

98456381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 98456381 is about 9922.5188838319. The cubic root of 98456381 is about 461.7582066537.

The spelling of 98456381 in words is "ninety-eight million, four hundred fifty-six thousand, three hundred eighty-one".