1628649327 has 8 divisors (see below), whose sum is σ = 2171788416. Its totient is φ = 1085638232.

The previous prime is 1628649301. The next prime is 1628649331. The reversal of 1628649327 is 7239468261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1628649327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628649377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3238 + ... + 57164.

It is an arithmetic number, because the mean of its divisors is an integer number (271473552).

Almost surely, 2^1628649327 is an apocalyptic number.

1628649327 is a deficient number, since it is larger than the sum of its proper divisors (543139089).

1628649327 is a wasteful number, since it uses less digits than its factorization.

1628649327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63997.

The product of its digits is 870912, while the sum is 48.

The square root of 1628649327 is about 40356.5276875997. The cubic root of 1628649327 is about 1176.5467668099.

The spelling of 1628649327 in words is "one billion, six hundred twenty-eight million, six hundred forty-nine thousand, three hundred twenty-seven".