23969856 has 56 divisors (see below), whose sum is σ = 63971424. Its totient is φ = 7920640.

The previous prime is 23969837. The next prime is 23969873. The reversal of 23969856 is 65896932.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24676 + ... + 25628.

Almost surely, 2^23969856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23969856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31985712).

23969856 is an abundant number, since it is smaller than the sum of its proper divisors (40001568).

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

23969856 is a wasteful number, since it uses less digits than its factorization.

23969856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1089 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 23969856 is about 4895.9019598027. The cubic root of 23969856 is about 288.3290991021.

The spelling of 23969856 in words is "twenty-three million, nine hundred sixty-nine thousand, eight hundred fifty-six".