497238819 has 48 divisors (see below), whose sum is σ = 864182016. Its totient is φ = 251294400.

The previous prime is 497238811. The next prime is 497238823. The reversal of 497238819 is 918832794.

It is not a de Polignac number, because 497238819 - 2³ = 497238811 is a prime.

It is a super-2 number, since 2×497238819² = 494492886241029522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (497238811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55674 + ... + 63984.

It is an arithmetic number, because the mean of its divisors is an integer number (18003792).

Almost surely, 2^497238819 is an apocalyptic number.

497238819 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

497238819 is a deficient number, since it is larger than the sum of its proper divisors (366943197).

497238819 is a wasteful number, since it uses less digits than its factorization.

497238819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8376 (or 8369 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 497238819 is about 22298.8524144181. The cubic root of 497238819 is about 792.2367943751.

The spelling of 497238819 in words is "four hundred ninety-seven million, two hundred thirty-eight thousand, eight hundred nineteen".