474969309 has 4 divisors (see below), whose sum is σ = 633292416. Its totient is φ = 316646204.

The previous prime is 474969301. The next prime is 474969323. The reversal of 474969309 is 903969474.

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 a cyclic number.

It is not a de Polignac number, because 474969309 - 2³ = 474969301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474969301) 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, 79161549 + ... + 79161554.

It is an arithmetic number, because the mean of its divisors is an integer number (158323104).

Almost surely, 2^474969309 is an apocalyptic number.

It is an amenable number.

474969309 is a deficient number, since it is larger than the sum of its proper divisors (158323107).

474969309 is a wasteful number, since it uses less digits than its factorization.

474969309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158323106.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 474969309 is about 21793.7906065007. The cubic root of 474969309 is about 780.2285704230.

The spelling of 474969309 in words is "four hundred seventy-four million, nine hundred sixty-nine thousand, three hundred nine".