23871672 has 160 divisors (see below), whose sum is σ = 77623920. Its totient is φ = 6773760.

The previous prime is 23871649. The next prime is 23871703. The reversal of 23871672 is 27617832.

It is a super-3 number, since 3×23871672³ (a number of 23 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 121078 + ... + 121274.

Almost surely, 2^23871672 is an apocalyptic number.

23871672 is a gapful number since it is divisible by the number (22) 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 23871672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38811960).

23871672 is an abundant number, since it is smaller than the sum of its proper divisors (53752248).

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

23871672 is a wasteful number, since it uses less digits than its factorization.

23871672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 230 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 23871672 is about 4885.8645089687. The cubic root of 23871672 is about 287.9348811106.

The spelling of 23871672 in words is "twenty-three million, eight hundred seventy-one thousand, six hundred seventy-two".