23720319 has 24 divisors (see below), whose sum is σ = 39716352. Its totient is φ = 13361040.

The previous prime is 23720299. The next prime is 23720371. The reversal of 23720319 is 91302732.

It is not a de Polignac number, because 23720319 - 2⁸ = 23720063 is a prime.

It is a super-2 number, since 2×23720319² = 1125307066923522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23720292 and 23720301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23720519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1822 + ... + 7124.

It is an arithmetic number, because the mean of its divisors is an integer number (1654848).

Almost surely, 2^23720319 is an apocalyptic number.

23720319 is a deficient number, since it is larger than the sum of its proper divisors (15996033).

23720319 is a wasteful number, since it uses less digits than its factorization.

23720319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387 (or 5384 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 23720319 is about 4870.3510140441. The cubic root of 23720319 is about 287.3250615647.

The spelling of 23720319 in words is "twenty-three million, seven hundred twenty thousand, three hundred nineteen".