497811457 has 32 divisors (see below), whose sum is σ = 627419520. Its totient is φ = 388177920.

The previous prime is 497811439. The next prime is 497811481. The reversal of 497811457 is 754118794.

It is a happy number.

It is not a de Polignac number, because 497811457 - 2¹⁵ = 497778689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (497811437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142273 + ... + 145729.

It is an arithmetic number, because the mean of its divisors is an integer number (19606860).

It is a Proth number, since it is equal to 1899 ⋅ 2¹⁸ + 1 and 1899 < 2¹⁸.

Almost surely, 2^497811457 is an apocalyptic number.

It is an amenable number.

497811457 is a deficient number, since it is larger than the sum of its proper divisors (129608063).

497811457 is a wasteful number, since it uses less digits than its factorization.

497811457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553.

The product of its digits is 282240, while the sum is 46.

The square root of 497811457 is about 22311.6887975787. The cubic root of 497811457 is about 792.5408004417.

The spelling of 497811457 in words is "four hundred ninety-seven million, eight hundred eleven thousand, four hundred fifty-seven".