628534546 has 4 divisors (see below), whose sum is σ = 942801822. Its totient is φ = 314267272.

The previous prime is 628534541. The next prime is 628534549. The reversal of 628534546 is 645435826.

628534546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 618069321 + 10465225 = 24861^2 + 3235^2 .

It is a super-2 number, since 2×628534546² = 790111351030852232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (628534541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157133635 + ... + 157133638.

Almost surely, 2^628534546 is an apocalyptic number.

628534546 is a deficient number, since it is larger than the sum of its proper divisors (314267276).

628534546 is a wasteful number, since it uses less digits than its factorization.

628534546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314267275.

The product of its digits is 691200, while the sum is 43.

The square root of 628534546 is about 25070.5912574873. The cubic root of 628534546 is about 856.5966748942.

The spelling of 628534546 in words is "six hundred twenty-eight million, five hundred thirty-four thousand, five hundred forty-six".