497657747 has 4 divisors (see below), whose sum is σ = 523850280. Its totient is φ = 471465216.

The previous prime is 497657737. The next prime is 497657753. The reversal of 497657747 is 747756794.

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 497657747 - 2⁴ = 497657731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 497657692 and 497657701.

It is not an unprimeable number, because it can be changed into a prime (497657707) 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, 13096238 + ... + 13096275.

It is an arithmetic number, because the mean of its divisors is an integer number (130962570).

Almost surely, 2^497657747 is an apocalyptic number.

497657747 is a deficient number, since it is larger than the sum of its proper divisors (26192533).

497657747 is a wasteful number, since it uses less digits than its factorization.

497657747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26192532.

The product of its digits is 10372320, while the sum is 56.

The square root of 497657747 is about 22308.2439246123. The cubic root of 497657747 is about 792.4592207022.

The spelling of 497657747 in words is "four hundred ninety-seven million, six hundred fifty-seven thousand, seven hundred forty-seven".