497163791 has 16 divisors (see below), whose sum is σ = 548121600. Its totient is φ = 449352288.

The previous prime is 497163787. The next prime is 497163803. The reversal of 497163791 is 197361794.

It is not a de Polignac number, because 497163791 - 2² = 497163787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497163731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23420 + ... + 39278.

It is an arithmetic number, because the mean of its divisors is an integer number (34257600).

Almost surely, 2^497163791 is an apocalyptic number.

497163791 is a deficient number, since it is larger than the sum of its proper divisors (50957809).

497163791 is a wasteful number, since it uses less digits than its factorization.

497163791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15958.

The product of its digits is 285768, while the sum is 47.

The square root of 497163791 is about 22297.1700222248. The cubic root of 497163791 is about 792.1969456949.

The spelling of 497163791 in words is "four hundred ninety-seven million, one hundred sixty-three thousand, seven hundred ninety-one".