98261857 has 2 divisors, whose sum is σ = 98261858. Its totient is φ = 98261856.

The previous prime is 98261833. The next prime is 98261861. The reversal of 98261857 is 75816289.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96059601 + 2202256 = 9801^2 + 1484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98261857 is a prime.

It is not a weakly prime, because it can be changed into another prime (98261257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49130928 + 49130929.

It is an arithmetic number, because the mean of its divisors is an integer number (49130929).

Almost surely, 2^98261857 is an apocalyptic number.

It is an amenable number.

98261857 is a deficient number, since it is larger than the sum of its proper divisors (1).

98261857 is an equidigital number, since it uses as much as digits as its factorization.

98261857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 46.

The square root of 98261857 is about 9912.7118892864. The cubic root of 98261857 is about 461.4539017656.

The spelling of 98261857 in words is "ninety-eight million, two hundred sixty-one thousand, eight hundred fifty-seven".