498071921 has 2 divisors, whose sum is σ = 498071922. Its totient is φ = 498071920.

The previous prime is 498071879. The next prime is 498071939. The reversal of 498071921 is 129170894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432640000 + 65431921 = 20800^2 + 8089^2 .

It is a cyclic number.

It is not a de Polignac number, because 498071921 - 2¹⁸ = 497809777 is a prime.

It is not a weakly prime, because it can be changed into another prime (498071971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249035960 + 249035961.

It is an arithmetic number, because the mean of its divisors is an integer number (249035961).

Almost surely, 2^498071921 is an apocalyptic number.

It is an amenable number.

498071921 is a deficient number, since it is larger than the sum of its proper divisors (1).

498071921 is an equidigital number, since it uses as much as digits as its factorization.

498071921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 498071921 is about 22317.5249747816. The cubic root of 498071921 is about 792.6790002576.

The spelling of 498071921 in words is "four hundred ninety-eight million, seventy-one thousand, nine hundred twenty-one".