98257457 has 2 divisors, whose sum is σ = 98257458. Its totient is φ = 98257456.

The previous prime is 98257409. The next prime is 98257463. The reversal of 98257457 is 75475289.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97693456 + 564001 = 9884^2 + 751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98257457 is a prime.

It is a super-2 number, since 2×98257457² = 19309055712213698, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (98257477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49128728 + 49128729.

It is an arithmetic number, because the mean of its divisors is an integer number (49128729).

Almost surely, 2^98257457 is an apocalyptic number.

It is an amenable number.

98257457 is a deficient number, since it is larger than the sum of its proper divisors (1).

98257457 is an equidigital number, since it uses as much as digits as its factorization.

98257457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 47.

The square root of 98257457 is about 9912.4899495535. The cubic root of 98257457 is about 461.4470139540.

The spelling of 98257457 in words is "ninety-eight million, two hundred fifty-seven thousand, four hundred fifty-seven".