497674987 has 4 divisors (see below), whose sum is σ = 497765520. Its totient is φ = 497584456.

The previous prime is 497674981. The next prime is 497675021. The reversal of 497674987 is 789476794.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497674987 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36448 + ... + 48205.

It is an arithmetic number, because the mean of its divisors is an integer number (124441380).

Almost surely, 2^497674987 is an apocalyptic number.

497674987 is a deficient number, since it is larger than the sum of its proper divisors (90533).

497674987 is an equidigital number, since it uses as much as digits as its factorization.

497674987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90532.

The product of its digits is 21337344, while the sum is 61.

The square root of 497674987 is about 22308.6303255041. The cubic root of 497674987 is about 792.4683714618.

The spelling of 497674987 in words is "four hundred ninety-seven million, six hundred seventy-four thousand, nine hundred eighty-seven".