498400497 has 12 divisors (see below), whose sum is σ = 822756480. Its totient is φ = 284800248.

The previous prime is 498400459. The next prime is 498400523. The reversal of 498400497 is 794004894.

It is not a de Polignac number, because 498400497 - 2⁷ = 498400369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (498400597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3955497 + ... + 3955622.

It is an arithmetic number, because the mean of its divisors is an integer number (68563040).

Almost surely, 2^498400497 is an apocalyptic number.

It is an amenable number.

498400497 is a deficient number, since it is larger than the sum of its proper divisors (324355983).

498400497 is a wasteful number, since it uses less digits than its factorization.

498400497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7911132 (or 7911129 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 498400497 is about 22324.8851508804. The cubic root of 498400497 is about 792.8532709679.

The spelling of 498400497 in words is "four hundred ninety-eight million, four hundred thousand, four hundred ninety-seven".