98357257 has 4 divisors (see below), whose sum is σ = 104142996. Its totient is φ = 92571520.

The previous prime is 98357251. The next prime is 98357261. The reversal of 98357257 is 75275389.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86044176 + 12313081 = 9276^2 + 3509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98357257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98357251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892844 + ... + 2892877.

It is an arithmetic number, because the mean of its divisors is an integer number (26035749).

Almost surely, 2^98357257 is an apocalyptic number.

It is an amenable number.

98357257 is a deficient number, since it is larger than the sum of its proper divisors (5785739).

98357257 is a wasteful number, since it uses less digits than its factorization.

98357257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785738.

The product of its digits is 529200, while the sum is 46.

The square root of 98357257 is about 9917.5227249551. The cubic root of 98357257 is about 461.6031915118.

The spelling of 98357257 in words is "ninety-eight million, three hundred fifty-seven thousand, two hundred fifty-seven".