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, and also an emirpimes, since its reverse is a distinct semiprime: 903674 = 2 ⋅451837.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-476309 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
2476309 is an apocalyptic number.
It is an amenable number.
476309 is a wasteful number, since it uses less digits than its factorization.
476309 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1770.
The square root of 476309 is about 690.1514326581. The cubic root of 476309 is about 78.0961448638.
The spelling of 476309 in words is "four hundred seventy-six thousand, three hundred nine".