98081957 has 2 divisors, whose sum is σ = 98081958. Its totient is φ = 98081956.

The previous prime is 98081953. The next prime is 98081969. The reversal of 98081957 is 75918089.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84897796 + 13184161 = 9214^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 98081957 - 2² = 98081953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98081953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49040978 + 49040979.

It is an arithmetic number, because the mean of its divisors is an integer number (49040979).

Almost surely, 2^98081957 is an apocalyptic number.

It is an amenable number.

98081957 is a deficient number, since it is larger than the sum of its proper divisors (1).

98081957 is an equidigital number, since it uses as much as digits as its factorization.

98081957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 98081957 is about 9903.6335251260. The cubic root of 98081957 is about 461.1721163632.

The spelling of 98081957 in words is "ninety-eight million, eighty-one thousand, nine hundred fifty-seven".