1628243097 has 16 divisors (see below), whose sum is σ = 2344708800. Its totient is φ = 999116352.

The previous prime is 1628243087. The next prime is 1628243143. The reversal of 1628243097 is 7903428261.

It is not a de Polignac number, because 1628243097 - 2⁶ = 1628243033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1628243087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46203 + ... + 73424.

It is an arithmetic number, because the mean of its divisors is an integer number (146544300).

Almost surely, 2^1628243097 is an apocalyptic number.

It is an amenable number.

1628243097 is a deficient number, since it is larger than the sum of its proper divisors (716465703).

1628243097 is a wasteful number, since it uses less digits than its factorization.

1628243097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119992.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1628243097 is about 40351.4943589454. The cubic root of 1628243097 is about 1176.4489376193.

The spelling of 1628243097 in words is "one billion, six hundred twenty-eight million, two hundred forty-three thousand, ninety-seven".