23863820 has 24 divisors (see below), whose sum is σ = 50332128. Its totient is φ = 9504000.

The previous prime is 23863817. The next prime is 23863823. The reversal of 23863820 is 2836832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23863817) and next prime (23863823).

It is not an unprimeable number, because it can be changed into a prime (23863823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2345 + ... + 7295.

It is an arithmetic number, because the mean of its divisors is an integer number (2097172).

Almost surely, 2^23863820 is an apocalyptic number.

23863820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23863820 is an abundant number, since it is smaller than the sum of its proper divisors (26468308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23863820 is a wasteful number, since it uses less digits than its factorization.

23863820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201 (or 5199 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 23863820 is about 4885.0609003369. The cubic root of 23863820 is about 287.9033079470.

The spelling of 23863820 in words is "twenty-three million, eight hundred sixty-three thousand, eight hundred twenty".