496943309 has 4 divisors (see below), whose sum is σ = 523098240. Its totient is φ = 470788380.

The previous prime is 496943261. The next prime is 496943357. The reversal of 496943309 is 903349694.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (496943261) and next prime (496943357).

It is a cyclic number.

It is not a de Polignac number, because 496943309 - 2²⁰ = 495894733 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 (496943399) 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, 13077437 + ... + 13077474.

It is an arithmetic number, because the mean of its divisors is an integer number (130774560).

Almost surely, 2^496943309 is an apocalyptic number.

It is an amenable number.

496943309 is a deficient number, since it is larger than the sum of its proper divisors (26154931).

496943309 is a wasteful number, since it uses less digits than its factorization.

496943309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26154930.

The product of its (nonzero) digits is 629856, while the sum is 47.

The square root of 496943309 is about 22292.2253039036. The cubic root of 496943309 is about 792.0798206503.

The spelling of 496943309 in words is "four hundred ninety-six million, nine hundred forty-three thousand, three hundred nine".