497640359 has 4 divisors (see below), whose sum is σ = 498376104. Its totient is φ = 496904616.

The previous prime is 497640347. The next prime is 497640401. The reversal of 497640359 is 953046794.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 497640359 - 2²⁴ = 480863143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497642359) 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 3 ways as a sum of consecutive naturals, for example, 366857 + ... + 368210.

It is an arithmetic number, because the mean of its divisors is an integer number (124594026).

Almost surely, 2^497640359 is an apocalyptic number.

497640359 is a deficient number, since it is larger than the sum of its proper divisors (735745).

497640359 is an equidigital number, since it uses as much as digits as its factorization.

497640359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735744.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 497640359 is about 22307.8541998104. The cubic root of 497640359 is about 792.4499911721.

The spelling of 497640359 in words is "four hundred ninety-seven million, six hundred forty thousand, three hundred fifty-nine".