628129303 has 8 divisors (see below), whose sum is σ = 670247600. Its totient is φ = 586916928.

The previous prime is 628129301. The next prime is 628129321. The reversal of 628129303 is 303921826.

It is a happy number.

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 628129303 - 2¹ = 628129301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628129301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225048 + ... + 227821.

It is an arithmetic number, because the mean of its divisors is an integer number (83780950).

Almost surely, 2^628129303 is an apocalyptic number.

628129303 is a deficient number, since it is larger than the sum of its proper divisors (42118297).

628129303 is a wasteful number, since it uses less digits than its factorization.

628129303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452961.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 628129303 is about 25062.5079152107. The cubic root of 628129303 is about 856.4125405251.

The spelling of 628129303 in words is "six hundred twenty-eight million, one hundred twenty-nine thousand, three hundred three".