628578743 has 16 divisors (see below), whose sum is σ = 689955840. Its totient is φ = 569108064.

The previous prime is 628578737. The next prime is 628578761. The reversal of 628578743 is 347875826.

It is a cyclic number.

It is not a de Polignac number, because 628578743 - 2¹⁴ = 628562359 is a prime.

It is a super-2 number, since 2×628578743² = 790222472302920098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628578691 and 628578700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628578793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569330 + ... + 570432.

It is an arithmetic number, because the mean of its divisors is an integer number (43122240).

Almost surely, 2^628578743 is an apocalyptic number.

628578743 is a deficient number, since it is larger than the sum of its proper divisors (61377097).

628578743 is a wasteful number, since it uses less digits than its factorization.

628578743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918.

The product of its digits is 2257920, while the sum is 50.

The square root of 628578743 is about 25071.4726930829. The cubic root of 628578743 is about 856.6167523459.

The spelling of 628578743 in words is "six hundred twenty-eight million, five hundred seventy-eight thousand, seven hundred forty-three".