13923648 has 84 divisors (see below), whose sum is σ = 41684448. Its totient is φ = 4435200.

The previous prime is 13923631. The next prime is 13923649. The reversal of 13923648 is 84632931.

13923648 is a `hidden beast` number, since 1 + 3 + 9 + 2 + 3 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13923649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12723 + ... + 13773.

Almost surely, 2^13923648 is an apocalyptic number.

13923648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13923648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20842224).

13923648 is an abundant number, since it is smaller than the sum of its proper divisors (27760800).

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

13923648 is a wasteful number, since it uses less digits than its factorization.

13923648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1079 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 13923648 is about 3731.4404725253. The cubic root of 13923648 is about 240.5752865871.

The spelling of 13923648 in words is "thirteen million, nine hundred twenty-three thousand, six hundred forty-eight".