98207257 has 4 divisors (see below), whose sum is σ = 103376080. Its totient is φ = 93038436.

The previous prime is 98207243. The next prime is 98207267. The reversal of 98207257 is 75270289.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75270289 = 1213 ⋅62053.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98207257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98207267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2584383 + ... + 2584420.

It is an arithmetic number, because the mean of its divisors is an integer number (25844020).

Almost surely, 2^98207257 is an apocalyptic number.

It is an amenable number.

98207257 is a deficient number, since it is larger than the sum of its proper divisors (5168823).

98207257 is a wasteful number, since it uses less digits than its factorization.

98207257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168822.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 98207257 is about 9909.9574671136. The cubic root of 98207257 is about 461.3684157255.

The spelling of 98207257 in words is "ninety-eight million, two hundred seven thousand, two hundred fifty-seven".