1628629223 has 16 divisors (see below), whose sum is σ = 1870475040. Its totient is φ = 1404711936.

The previous prime is 1628629217. The next prime is 1628629231. The reversal of 1628629223 is 3229268261.

It is a cyclic number.

It is not a de Polignac number, because 1628629223 - 2⁴ = 1628629207 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628629253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4211 + ... + 57227.

It is an arithmetic number, because the mean of its divisors is an integer number (116904690).

Almost surely, 2^1628629223 is an apocalyptic number.

1628629223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1628629223 is a deficient number, since it is larger than the sum of its proper divisors (241845817).

1628629223 is a wasteful number, since it uses less digits than its factorization.

1628629223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53186.

The product of its digits is 124416, while the sum is 41.

The square root of 1628629223 is about 40356.2786069281. The cubic root of 1628629223 is about 1176.5419257036.

The spelling of 1628629223 in words is "one billion, six hundred twenty-eight million, six hundred twenty-nine thousand, two hundred twenty-three".