98908457 has 2 divisors, whose sum is σ = 98908458. Its totient is φ = 98908456.

The previous prime is 98908451. The next prime is 98908493. The reversal of 98908457 is 75480989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70829056 + 28079401 = 8416^2 + 5299^2 .

It is a cyclic number.

It is not a de Polignac number, because 98908457 - 2⁶ = 98908393 is a prime.

It is a super-2 number, since 2×98908457² = 19565765732241698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98908451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49454228 + 49454229.

It is an arithmetic number, because the mean of its divisors is an integer number (49454229).

Almost surely, 2^98908457 is an apocalyptic number.

It is an amenable number.

98908457 is a deficient number, since it is larger than the sum of its proper divisors (1).

98908457 is an equidigital number, since it uses as much as digits as its factorization.

98908457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 98908457 is about 9945.2730983116. The cubic root of 98908457 is about 462.4638697853.

The spelling of 98908457 in words is "ninety-eight million, nine hundred eight thousand, four hundred fifty-seven".