2172968 has 16 divisors (see below), whose sum is σ = 4656480. Its totient is φ = 931248.

The previous prime is 2172967. The next prime is 2172977. The reversal of 2172968 is 8692712.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2172967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19346 + ... + 19457.

It is an arithmetic number, because the mean of its divisors is an integer number (291030).

2^2172968 is an apocalyptic number.

2172968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2172968 is an abundant number, since it is smaller than the sum of its proper divisors (2483512).

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

2172968 is a wasteful number, since it uses less digits than its factorization.

2172968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38816 (or 38812 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2172968 is about 1474.0990468758. The cubic root of 2172968 is about 129.5242571695.

The spelling of 2172968 in words is "two million, one hundred seventy-two thousand, nine hundred sixty-eight".