628034306 has 4 divisors (see below), whose sum is σ = 942051462. Its totient is φ = 314017152.

The previous prime is 628034299. The next prime is 628034321. The reversal of 628034306 is 603430826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603430826 = 2 ⋅301715413.

It can be written as a sum of positive squares in only one way, i.e., 341917081 + 286117225 = 18491^2 + 16915^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 157008575 + ... + 157008578.

Almost surely, 2^628034306 is an apocalyptic number.

628034306 is a deficient number, since it is larger than the sum of its proper divisors (314017156).

628034306 is a wasteful number, since it uses less digits than its factorization.

628034306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314017155.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 628034306 is about 25060.6126421522. The cubic root of 628034306 is about 856.3693643174.

The spelling of 628034306 in words is "six hundred twenty-eight million, thirty-four thousand, three hundred six".