495408709 has 4 divisors (see below), whose sum is σ = 497898400. Its totient is φ = 492919020.

The previous prime is 495408703. The next prime is 495408721. The reversal of 495408709 is 907804594.

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 not a de Polignac number, because 495408709 - 2³ = 495408701 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 (495408701) 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, 1244547 + ... + 1244944.

It is an arithmetic number, because the mean of its divisors is an integer number (124474600).

Almost surely, 2^495408709 is an apocalyptic number.

It is an amenable number.

495408709 is a deficient number, since it is larger than the sum of its proper divisors (2489691).

495408709 is a wasteful number, since it uses less digits than its factorization.

495408709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489690.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 495408709 is about 22257.7786178226. The cubic root of 495408709 is about 791.2636450191.

The spelling of 495408709 in words is "four hundred ninety-five million, four hundred eight thousand, seven hundred nine".