498666893 has 2 divisors, whose sum is σ = 498666894. Its totient is φ = 498666892.

The previous prime is 498666821. The next prime is 498666907. The reversal of 498666893 is 398666894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298529284 + 200137609 = 17278^2 + 14147^2 .

It is a cyclic number.

It is not a de Polignac number, because 498666893 - 2¹⁸ = 498404749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498662893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249333446 + 249333447.

It is an arithmetic number, because the mean of its divisors is an integer number (249333447).

Almost surely, 2^498666893 is an apocalyptic number.

It is an amenable number.

498666893 is a deficient number, since it is larger than the sum of its proper divisors (1).

498666893 is an equidigital number, since it uses as much as digits as its factorization.

498666893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13436928, while the sum is 59.

The square root of 498666893 is about 22330.8507003204. The cubic root of 498666893 is about 792.9945063273.

Subtracting from 498666893 its reverse (398666894), we obtain a palindrome (99999999).

The spelling of 498666893 in words is "four hundred ninety-eight million, six hundred sixty-six thousand, eight hundred ninety-three".