4172868 has 72 divisors (see below), whose sum is σ = 12492480. Its totient is φ = 1149120.

The previous prime is 4172863. The next prime is 4172869. The reversal of 4172868 is 8682714.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7023 + ... + 7593.

Almost surely, 2^4172868 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 4172868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6246240).

4172868 is an abundant number, since it is smaller than the sum of its proper divisors (8319612).

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

4172868 is a wasteful number, since it uses less digits than its factorization.

4172868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617 (or 612 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 4172868 is about 2042.7598977853. The cubic root of 4172868 is about 160.9946888157.

The spelling of 4172868 in words is "four million, one hundred seventy-two thousand, eight hundred sixty-eight".