23728619 has 4 divisors (see below), whose sum is σ = 23827320. Its totient is φ = 23629920.

The previous prime is 23728603. The next prime is 23728631. The reversal of 23728619 is 91682732.

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 23728619 - 2⁴ = 23728603 is a prime.

It is a super-2 number, since 2×23728619² = 1126094719294322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23728669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48989 + ... + 49470.

It is an arithmetic number, because the mean of its divisors is an integer number (5956830).

Almost surely, 2^23728619 is an apocalyptic number.

23728619 is a deficient number, since it is larger than the sum of its proper divisors (98701).

23728619 is an equidigital number, since it uses as much as digits as its factorization.

23728619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98700.

The product of its digits is 36288, while the sum is 38.

The square root of 23728619 is about 4871.2030341590. The cubic root of 23728619 is about 287.3585703877.

The spelling of 23728619 in words is "twenty-three million, seven hundred twenty-eight thousand, six hundred nineteen".