23820319 has 4 divisors (see below), whose sum is σ = 25074040. Its totient is φ = 22566600.

The previous prime is 23820311. The next prime is 23820343. The reversal of 23820319 is 91302832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23820319 - 2³ = 23820311 is a prime.

It is a super-2 number, since 2×23820319² = 1134815194523522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23820311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626832 + ... + 626869.

It is an arithmetic number, because the mean of its divisors is an integer number (6268510).

Almost surely, 2^23820319 is an apocalyptic number.

23820319 is a deficient number, since it is larger than the sum of its proper divisors (1253721).

23820319 is a wasteful number, since it uses less digits than its factorization.

23820319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253720.

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

The square root of 23820319 is about 4880.6064172396. The cubic root of 23820319 is about 287.7282633327.

The spelling of 23820319 in words is "twenty-three million, eight hundred twenty thousand, three hundred nineteen".