23320819 has 2 divisors, whose sum is σ = 23320820. Its totient is φ = 23320818.

The previous prime is 23320813. The next prime is 23320823. The reversal of 23320819 is 91802332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23320819 - 2³ = 23320811 is a prime.

It is a super-2 number, since 2×23320819² = 1087721197661522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23320811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660409 + 11660410.

It is an arithmetic number, because the mean of its divisors is an integer number (11660410).

Almost surely, 2^23320819 is an apocalyptic number.

23320819 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320819 is an equidigital number, since it uses as much as digits as its factorization.

23320819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 23320819 is about 4829.1633851010. The cubic root of 23320819 is about 285.7028676032.

The spelling of 23320819 in words is "twenty-three million, three hundred twenty thousand, eight hundred nineteen".