1623320359 has 2 divisors, whose sum is σ = 1623320360. Its totient is φ = 1623320358.

The previous prime is 1623320341. The next prime is 1623320383. The reversal of 1623320359 is 9530233261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1623320359 - 2¹⁷ = 1623189287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1623320389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811660179 + 811660180.

It is an arithmetic number, because the mean of its divisors is an integer number (811660180).

Almost surely, 2^1623320359 is an apocalyptic number.

1623320359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623320359 is an equidigital number, since it uses as much as digits as its factorization.

1623320359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 1623320359 is about 40290.4499726672. The cubic root of 1623320359 is about 1175.2621377413.

The spelling of 1623320359 in words is "one billion, six hundred twenty-three million, three hundred twenty thousand, three hundred fifty-nine".