498663901 has 2 divisors, whose sum is σ = 498663902. Its totient is φ = 498663900.

The previous prime is 498663889. The next prime is 498663947. The reversal of 498663901 is 109366894.

It is an a-pointer prime, because the next prime (498663947) can be obtained adding 498663901 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 496844100 + 1819801 = 22290^2 + 1349^2 .

It is a cyclic number.

It is not a de Polignac number, because 498663901 - 2¹¹ = 498661853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498663001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249331950 + 249331951.

It is an arithmetic number, because the mean of its divisors is an integer number (249331951).

Almost surely, 2^498663901 is an apocalyptic number.

It is an amenable number.

498663901 is a deficient number, since it is larger than the sum of its proper divisors (1).

498663901 is an equidigital number, since it uses as much as digits as its factorization.

498663901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 498663901 is about 22330.7837076982. The cubic root of 498663901 is about 792.9929203358.

The spelling of 498663901 in words is "four hundred ninety-eight million, six hundred sixty-three thousand, nine hundred one".