428477307 has 4 divisors (see below), whose sum is σ = 571303080. Its totient is φ = 285651536.

The previous prime is 428477297. The next prime is 428477351. The reversal of 428477307 is 703774824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428477307 - 2⁶ = 428477243 is a prime.

It is a super-2 number, since 2×428477307² = 367185605227944498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428477107) 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, 71412882 + ... + 71412887.

It is an arithmetic number, because the mean of its divisors is an integer number (142825770).

Almost surely, 2^428477307 is an apocalyptic number.

428477307 is a deficient number, since it is larger than the sum of its proper divisors (142825773).

428477307 is a wasteful number, since it uses less digits than its factorization.

428477307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142825772.

The product of its (nonzero) digits is 263424, while the sum is 42.

The square root of 428477307 is about 20699.6934035265. The cubic root of 428477307 is about 753.8922438631.

The spelling of 428477307 in words is "four hundred twenty-eight million, four hundred seventy-seven thousand, three hundred seven".