628386047 has 8 divisors (see below), whose sum is σ = 647264640. Its totient is φ = 609701400.

The previous prime is 628386037. The next prime is 628386053. The reversal of 628386047 is 740683826.

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 628386047 - 2¹² = 628381951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628385989 and 628386007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628386037) 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, 41897 + ... + 54882.

It is an arithmetic number, because the mean of its divisors is an integer number (80908080).

Almost surely, 2^628386047 is an apocalyptic number.

628386047 is a deficient number, since it is larger than the sum of its proper divisors (18878593).

628386047 is a wasteful number, since it uses less digits than its factorization.

628386047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96973.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 628386047 is about 25067.6294651090. The cubic root of 628386047 is about 856.5292090885.

The spelling of 628386047 in words is "six hundred twenty-eight million, three hundred eighty-six thousand, forty-seven".