496191979 has 4 divisors (see below), whose sum is σ = 497597976. Its totient is φ = 494785984.

The previous prime is 496191959. The next prime is 496192003. The reversal of 496191979 is 979191694.

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 496191979 - 2⁷ = 496191851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (496191929) 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, 702469 + ... + 703174.

It is an arithmetic number, because the mean of its divisors is an integer number (124399494).

Almost surely, 2^496191979 is an apocalyptic number.

496191979 is a deficient number, since it is larger than the sum of its proper divisors (1405997).

496191979 is a wasteful number, since it uses less digits than its factorization.

496191979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405996.

The product of its digits is 1102248, while the sum is 55.

The square root of 496191979 is about 22275.3670901290. The cubic root of 496191979 is about 791.6804367294.

The spelling of 496191979 in words is "four hundred ninety-six million, one hundred ninety-one thousand, nine hundred seventy-nine".