98989057 has 2 divisors, whose sum is σ = 98989058. Its totient is φ = 98989056.

The previous prime is 98989039. The next prime is 98989087. The reversal of 98989057 is 75098989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97634161 + 1354896 = 9881^2 + 1164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98989057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98988989 and 98989007.

It is not a weakly prime, because it can be changed into another prime (98989027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49494528 + 49494529.

It is an arithmetic number, because the mean of its divisors is an integer number (49494529).

Almost surely, 2^98989057 is an apocalyptic number.

It is an amenable number.

98989057 is a deficient number, since it is larger than the sum of its proper divisors (1).

98989057 is an equidigital number, since it uses as much as digits as its factorization.

98989057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The square root of 98989057 is about 9949.3244494287. The cubic root of 98989057 is about 462.5894554992.

The spelling of 98989057 in words is "ninety-eight million, nine hundred eighty-nine thousand, fifty-seven".