628853426 has 8 divisors (see below), whose sum is σ = 998767260. Its totient is φ = 295931008.

The previous prime is 628853389. The next prime is 628853473. The reversal of 628853426 is 624358826.

It can be written as a sum of positive squares in 2 ways, for example, as 627753025 + 1100401 = 25055^2 + 1049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9247811 + ... + 9247878.

Almost surely, 2^628853426 is an apocalyptic number.

628853426 is a deficient number, since it is larger than the sum of its proper divisors (369913834).

628853426 is a wasteful number, since it uses less digits than its factorization.

628853426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18495708.

The product of its digits is 552960, while the sum is 44.

The square root of 628853426 is about 25076.9500936617. The cubic root of 628853426 is about 856.7415119966.

The spelling of 628853426 in words is "six hundred twenty-eight million, eight hundred fifty-three thousand, four hundred twenty-six".