98031257 has 2 divisors, whose sum is σ = 98031258. Its totient is φ = 98031256.

The previous prime is 98031253. The next prime is 98031301. The reversal of 98031257 is 75213089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93296281 + 4734976 = 9659^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 98031257 - 2² = 98031253 is a prime.

It is a super-2 number, since 2×98031257² = 19220254698000098, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98031253) 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, 49015628 + 49015629.

It is an arithmetic number, because the mean of its divisors is an integer number (49015629).

Almost surely, 2^98031257 is an apocalyptic number.

It is an amenable number.

98031257 is a deficient number, since it is larger than the sum of its proper divisors (1).

98031257 is an equidigital number, since it uses as much as digits as its factorization.

98031257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 98031257 is about 9901.0735276535. The cubic root of 98031257 is about 461.0926404605.

The spelling of 98031257 in words is "ninety-eight million, thirty-one thousand, two hundred fifty-seven".