497641 has 8 divisors (see below), whose sum is σ = 535464. Its totient is φ = 460800.

The previous prime is 497633. The next prime is 497659. The reversal of 497641 is 146794.

It can be written as a sum of positive squares in 4 ways, for example, as 313600 + 184041 = 560^2 + 429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 4-Lehmer number, since φ(497641) divides (497641-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 497641 - 2³ = 497633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041 + ... + 1441.

It is an arithmetic number, because the mean of its divisors is an integer number (66933).

2⁴⁹⁷⁶⁴¹ is an apocalyptic number.

It is an amenable number.

497641 is a deficient number, since it is larger than the sum of its proper divisors (37823).

497641 is a wasteful number, since it uses less digits than its factorization.

497641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its digits is 6048, while the sum is 31.

The square root of 497641 is about 705.4367441522. The cubic root of 497641 is about 79.2450331418.

The spelling of 497641 in words is "four hundred ninety-seven thousand, six hundred forty-one".