497665619 has 6 divisors (see below), whose sum is σ = 547021020. Its totient is φ = 452423180.

The previous prime is 497665603. The next prime is 497665639. The reversal of 497665619 is 916566794.

It is not a de Polignac number, because 497665619 - 2⁴ = 497665603 is a prime.

It is a super-2 number, since 2×497665619² = 495342136669306322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497665639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2056349 + ... + 2056590.

It is an arithmetic number, because the mean of its divisors is an integer number (91170170).

Almost surely, 2^497665619 is an apocalyptic number.

497665619 is a deficient number, since it is larger than the sum of its proper divisors (49355401).

497665619 is a wasteful number, since it uses less digits than its factorization.

497665619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112961 (or 4112950 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 497665619 is about 22308.4203609310. The cubic root of 497665619 is about 792.4633990799.

The spelling of 497665619 in words is "four hundred ninety-seven million, six hundred sixty-five thousand, six hundred nineteen".