498290981 has 2 divisors, whose sum is σ = 498290982. Its totient is φ = 498290980.

The previous prime is 498290971. The next prime is 498290987. The reversal of 498290981 is 189092894.

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., 494350756 + 3940225 = 22234^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 498290981 - 2²² = 494096677 is a prime.

It is a super-2 number, since 2×498290981² = 496587803491884722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498290987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249145490 + 249145491.

It is an arithmetic number, because the mean of its divisors is an integer number (249145491).

Almost surely, 2^498290981 is an apocalyptic number.

It is an amenable number.

498290981 is a deficient number, since it is larger than the sum of its proper divisors (1).

498290981 is an equidigital number, since it uses as much as digits as its factorization.

498290981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 498290981 is about 22322.4322375497. The cubic root of 498290981 is about 792.7951941936.

The spelling of 498290981 in words is "four hundred ninety-eight million, two hundred ninety thousand, nine hundred eighty-one".