497563621 has 16 divisors (see below), whose sum is σ = 538531840. Its totient is φ = 458181360.

The previous prime is 497563571. The next prime is 497563637. The reversal of 497563621 is 126365794.

It is a cyclic number.

It is not a de Polignac number, because 497563621 - 2¹⁷ = 497432549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497563681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180826 + ... + 183556.

It is an arithmetic number, because the mean of its divisors is an integer number (33658240).

Almost surely, 2^497563621 is an apocalyptic number.

It is an amenable number.

497563621 is a deficient number, since it is larger than the sum of its proper divisors (40968219).

497563621 is a wasteful number, since it uses less digits than its factorization.

497563621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016.

The product of its digits is 272160, while the sum is 43.

The square root of 497563621 is about 22306.1341563257. The cubic root of 497563621 is about 792.4092561632.

The spelling of 497563621 in words is "four hundred ninety-seven million, five hundred sixty-three thousand, six hundred twenty-one".