496809749 has 16 divisors (see below), whose sum is σ = 513477120. Its totient is φ = 480504960.

The previous prime is 496809743. The next prime is 496809763. The reversal of 496809749 is 947908694.

It is a cyclic number.

It is not a de Polignac number, because 496809749 - 2²⁰ = 495761173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 496809694 and 496809703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (496809743) 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 15 ways as a sum of consecutive naturals, for example, 1597304 + ... + 1597614.

It is an arithmetic number, because the mean of its divisors is an integer number (32092320).

Almost surely, 2^496809749 is an apocalyptic number.

It is an amenable number.

496809749 is a deficient number, since it is larger than the sum of its proper divisors (16667371).

496809749 is a wasteful number, since it uses less digits than its factorization.

496809749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 496809749 is about 22289.2294393503. The cubic root of 496809749 is about 792.0088536957.

The spelling of 496809749 in words is "four hundred ninety-six million, eight hundred nine thousand, seven hundred forty-nine".