628477469 has 8 divisors (see below), whose sum is σ = 642620160. Its totient is φ = 614489616.

The previous prime is 628477457. The next prime is 628477483. The reversal of 628477469 is 964774826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628477469 is a prime.

It is a super-2 number, since 2×628477469² = 789967858081291922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 628477469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628477429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30482 + ... + 46755.

It is an arithmetic number, because the mean of its divisors is an integer number (80327520).

Almost surely, 2^628477469 is an apocalyptic number.

It is an amenable number.

628477469 is a deficient number, since it is larger than the sum of its proper divisors (14142691).

628477469 is a wasteful number, since it uses less digits than its factorization.

628477469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77419.

The product of its digits is 4064256, while the sum is 53.

The square root of 628477469 is about 25069.4529058773. The cubic root of 628477469 is about 856.5707450288.

The spelling of 628477469 in words is "six hundred twenty-eight million, four hundred seventy-seven thousand, four hundred sixty-nine".