628650243 has 24 divisors (see below), whose sum is σ = 978897920. Its totient is φ = 386467200.

The previous prime is 628650227. The next prime is 628650277. The reversal of 628650243 is 342056826.

628650243 is a `hidden beast` number, since 628 + 6 + 5 + 0 + 24 + 3 = 666.

It is not a de Polignac number, because 628650243 - 2⁴ = 628650227 is a prime.

It is a super-2 number, since 2×628650243² = 790402256047918098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 628650198 and 628650207.

It is not an unprimeable number, because it can be changed into a prime (628650203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147543 + ... + 151743.

Almost surely, 2^628650243 is an apocalyptic number.

628650243 is a deficient number, since it is larger than the sum of its proper divisors (350247677).

628650243 is a wasteful number, since it uses less digits than its factorization.

628650243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499 (or 5496 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 628650243 is about 25072.8985759525. The cubic root of 628650243 is about 856.6492307883.

The spelling of 628650243 in words is "six hundred twenty-eight million, six hundred fifty thousand, two hundred forty-three".