497945879 has 4 divisors (see below), whose sum is σ = 497992176. Its totient is φ = 497899584.

The previous prime is 497945849. The next prime is 497945881. The reversal of 497945879 is 978549794.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 978549794 = 2 ⋅489274897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497945879 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 (497945849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342 + ... + 31644.

It is an arithmetic number, because the mean of its divisors is an integer number (124498044).

Almost surely, 2^497945879 is an apocalyptic number.

497945879 is a deficient number, since it is larger than the sum of its proper divisors (46297).

497945879 is a wasteful number, since it uses less digits than its factorization.

497945879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46296.

The product of its digits is 22861440, while the sum is 62.

The square root of 497945879 is about 22314.7009614738. The cubic root of 497945879 is about 792.6121295432.

The spelling of 497945879 in words is "four hundred ninety-seven million, nine hundred forty-five thousand, eight hundred seventy-nine".