497674985 has 4 divisors (see below), whose sum is σ = 597209988. Its totient is φ = 398139984.

The previous prime is 497674981. The next prime is 497675021. The reversal of 497674985 is 589476794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 285914281 + 211760704 = 16909^2 + 14552^2 .

It is a cyclic number.

It is not a de Polignac number, because 497674985 - 2² = 497674981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497674981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49767494 + ... + 49767503.

It is an arithmetic number, because the mean of its divisors is an integer number (149302497).

Almost surely, 2^497674985 is an apocalyptic number.

It is an amenable number.

497674985 is a deficient number, since it is larger than the sum of its proper divisors (99535003).

497674985 is an equidigital number, since it uses as much as digits as its factorization.

497674985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99535002.

The product of its digits is 15240960, while the sum is 59.

The square root of 497674985 is about 22308.6302806784. The cubic root of 497674985 is about 792.4683704002.

The spelling of 497674985 in words is "four hundred ninety-seven million, six hundred seventy-four thousand, nine hundred eighty-five".