1623893923 has 2 divisors, whose sum is σ = 1623893924. Its totient is φ = 1623893922.

The previous prime is 1623893917. The next prime is 1623893927. The reversal of 1623893923 is 3293983261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1623893923 - 2⁵ = 1623893891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1623893927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811946961 + 811946962.

It is an arithmetic number, because the mean of its divisors is an integer number (811946962).

Almost surely, 2^1623893923 is an apocalyptic number.

1623893923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623893923 is an equidigital number, since it uses as much as digits as its factorization.

1623893923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 46.

The square root of 1623893923 is about 40297.5672094483. The cubic root of 1623893923 is about 1175.4005389865.

The spelling of 1623893923 in words is "one billion, six hundred twenty-three million, eight hundred ninety-three thousand, nine hundred twenty-three".