628428463 has 8 divisors (see below), whose sum is σ = 700106400. Its totient is φ = 560084448.

The previous prime is 628428419. The next prime is 628428481. The reversal of 628428463 is 364824826.

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

It is a cyclic number.

It is not a de Polignac number, because 628428463 - 2²¹ = 626331311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628428403) 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, 833083 + ... + 833836.

It is an arithmetic number, because the mean of its divisors is an integer number (87513300).

Almost surely, 2^628428463 is an apocalyptic number.

628428463 is a deficient number, since it is larger than the sum of its proper divisors (71677937).

628428463 is a wasteful number, since it uses less digits than its factorization.

628428463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666961.

The product of its digits is 442368, while the sum is 43.

The square root of 628428463 is about 25068.4754821668. The cubic root of 628428463 is about 856.5484805356.

The spelling of 628428463 in words is "six hundred twenty-eight million, four hundred twenty-eight thousand, four hundred sixty-three".