497421769 has 8 divisors (see below), whose sum is σ = 536529672. Its totient is φ = 458434560.

The previous prime is 497421763. The next prime is 497421787. The reversal of 497421769 is 967124794.

It can be written as a sum of positive squares in 4 ways, for example, as 4359744 + 493062025 = 2088^2 + 22205^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 497421769 - 2³ = 497421761 is a prime.

It is a super-2 number, since 2×497421769² = 494856832550178722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497421761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21514 + ... + 38179.

It is an arithmetic number, because the mean of its divisors is an integer number (67066209).

Almost surely, 2^497421769 is an apocalyptic number.

It is an amenable number.

497421769 is a deficient number, since it is larger than the sum of its proper divisors (39107903).

497421769 is a wasteful number, since it uses less digits than its factorization.

497421769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60347.

The product of its digits is 762048, while the sum is 49.

The square root of 497421769 is about 22302.9542661953. The cubic root of 497421769 is about 792.3339455116. Note that the first 3 decimals are identical.

The spelling of 497421769 in words is "four hundred ninety-seven million, four hundred twenty-one thousand, seven hundred sixty-nine".