1628273647 has 96 divisors (see below), whose sum is σ = 2385743360. Its totient is φ = 1077753600.

The previous prime is 1628273641. The next prime is 1628273657. The reversal of 1628273647 is 7463728261.

It is a de Polignac number, because none of the positive numbers 2^k-1628273647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1628273597 and 1628273606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628273641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8995897 + ... + 8996077.

Almost surely, 2^1628273647 is an apocalyptic number.

1628273647 is a deficient number, since it is larger than the sum of its proper divisors (757469713).

1628273647 is a wasteful number, since it uses less digits than its factorization.

1628273647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 274 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 1628273647 is about 40351.8729057277. The cubic root of 1628273647 is about 1176.4562953024.

The spelling of 1628273647 in words is "one billion, six hundred twenty-eight million, two hundred seventy-three thousand, six hundred forty-seven".